CN-116533375-B - Cement-stone powder-clay composite grouting material premixing device

CN116533375BCN 116533375 BCN116533375 BCN 116533375BCN-116533375-B

Abstract

The invention discloses a cement-stone powder-clay composite grouting material premixing device, which comprises a belt conveyor, a plurality of feeding bins, a rotary mixing box, a transition cylinder, an opening adjusting device and a discharging mechanism, wherein the rotary mixing box, the transition cylinder, the opening adjusting device and the discharging mechanism are sequentially arranged at the lower side of the feeding bins; the invention can complete the blending and premixing of cement, stone powder and clay by using a conveying belt in the conveying process of conveying the clay to a slurry preparation station for configuring grouting slurry from a stacking place, and can reduce the equipment cost of the slurry preparation station by using a traditional secondary slurry preparation process.

Inventors

LI GUODONG
LIU YONGLEI
WANG PENGXIANG
LU JUNYANG
LI HAIBIN
NING KEFANG
HAN BO
Chu Shuanjie
WEI GENGPENG
LI SHENGSHENG
AN XULIANG
LI YANFEI
TIAN LE
KAN XUEDONG
WEN YINGMING
HENG PEIGUO
WANG ZHEN
LI JIABIN
LIU YAN
GUO SHUITAO

Assignees

河南焦煤能源有限公司古汉山矿
北京中煤矿山工程有限公司

Dates

Publication Date: 20260512
Application Date: 20230417

Claims (10)

1. The cement-stone powder-clay composite grouting material premixing device is characterized by comprising a belt conveyor, a plurality of feeding bins (82), a rotary mixing box, a transition cylinder (70), an opening adjusting device and a discharging mechanism, wherein the rotary mixing box, the transition cylinder (70), the opening adjusting device and the discharging mechanism are sequentially arranged at the lower side of the feeding bins (82), the belt conveyor comprises a frame (10), a conveying belt (1) and a main shaft (11) arranged at one end of the conveying belt (1), a discharging port of the discharging mechanism is opposite to the conveying belt (1) and records the position of a material falling on the conveying belt (1) as a discharging position, a material thickness adjusting position positioned at the upstream of the discharging position and a mixing position positioned at the downstream of the discharging position are arranged above the conveying belt (1), and a material thickness adjusting mechanism for adjusting the material thickness on the conveying belt (1) is arranged at the mixing position, and a transverse mixing mechanism for mixing the material along the width direction of the conveying belt (1) is arranged at the mixing position; the opening adjusting device comprises an opening plate (56) capable of horizontally moving and an opening adjusting mechanism, wherein the discharging mechanism comprises a discharging impeller (61) and a discharging synchronous wheel (64) coaxially arranged with the discharging impeller (61), the material thickness adjusting mechanism comprises a material blocking plate (41) which moves up and down and a first adjusting mechanism for adjusting the height of the material blocking plate (41), and the transverse mixing mechanism comprises a material disturbing rod (33) which regularly translates on the surface of the conveying belt (1); The first adjusting mechanism is connected with the opening adjusting mechanism through a first transmission belt (16) so that the first adjusting mechanism can move to translate the opening plate (56), a first synchronizing wheel (12) is arranged on a main shaft (11) of the belt conveyor, and the discharging synchronizing wheel (64) is in transmission connection with the first synchronizing wheel (12) through a second transmission belt (18) so that the rotating speed of the discharging impeller (61) is positively related to the conveying speed of the conveying belt (1).
2. The cement-stone powder-clay composite grouting material premixing device according to claim 1, wherein the first adjusting mechanism comprises a material blocking mounting plate (40), a material blocking bracket (43) transversely clamped on the frame (10), an adjusting nut (44) arranged in the center of the upper part of the material blocking bracket (43), an adjusting screw (412) meshed with the adjusting nut (44), a handle (45) fixedly arranged at the top of the adjusting screw (412), a mounting seat fixedly arranged in the center of the top of the material blocking plate (41), an intermediate synchronizing wheel (49) and an intermediate driving belt (17) arranged on the side surface of the frame (10), the bottom end of the adjusting screw (412) is rotatably connected in the mounting seat, a material blocking gear (47) and a material blocking synchronizing wheel (48) are coaxially arranged on one material blocking mounting plate (40) through a material blocking rotating shaft, two ends of the material blocking plate (41) are fixedly provided with sliding plates (411), the sliding plates (411) slide up and down in the material blocking bracket (43), one sliding plate (41) is provided with a first linking plate (91) and a second linking plate (91) is provided with a linking gear (91), the material blocking gear (47) is meshed with the first tooth part (46), the material blocking synchronizing wheel (48) is connected with the middle synchronizing wheel (49) through the middle driving belt (17), the middle synchronizing wheel (49) is coaxially connected with the middle two synchronizing wheels, and the middle two synchronizing wheels are connected with the opening adjusting mechanism through the first driving belt (16).
3. The cement-stone powder-clay composite grouting material premixing device according to claim 2, characterized in that the opening adjusting device comprises a mounting body (50), a support shaft rotatably mounted on the mounting body (50) through a support seat (51), an opening synchronous wheel (52) fixedly mounted on the support shaft and two opening gears (53), wherein a material exposing hole (55) is formed in the inner surface of the mounting body (50), and a relief hole corresponding to the material exposing hole (55) is formed in an opening plate (56); The automatic feeding device is characterized in that a sliding groove and two rod holes communicated with the sliding groove are formed in the mounting body (50), the sliding groove is located below the material exposing hole (55), the outer ends of the two rod holes penetrate through the side face of the mounting body (50) facing the opening gear (53), the opening plate (56) is slidably mounted in the sliding groove, a toothed bar (54) is arranged in the rod holes in a penetrating mode, the inner end of the toothed bar (54) is fixedly connected with the opening plate (56), a second tooth portion is arranged on the lower side of the toothed bar (54), the second tooth portion is meshed with the opening gear (53), and the opening synchronous wheel (52) is connected with the middle synchronous wheel through a first transmission belt (16).
4. Cement-stone dust-clay composite grouting material premixing device according to claim 1, characterized in that the horizontal mixing mechanism comprises a mixing bracket (30) arranged on a frame (10), a transverse plate (29) arranged on the mixing bracket (30) in a sliding way through a sliding mechanism (31), a plurality of fixing cylinders (32) fixedly arranged on the transverse plate (29), a guide cylinder (26) fixed on the side surface of the frame (10) through a mixing bracket, a rod ring (28) arranged on one end of the transverse plate (29) close to the guide cylinder (26), a guide rod penetrating through the guide cylinder (26) in a sliding way and a reciprocating mechanism connected between a main shaft (11) and the guide rod, wherein the material disturbing rod (33) is fixed by the fixing cylinders (32), the reciprocating mechanism pushes the guide rod to reciprocate along the length direction of the conveying belt (1), and the guide rod is provided with a straight line section (25) matched with the fixing cylinders (32), an inclined line end (27) matched with the rod ring (28) and a guide rod preventing the rod ring (28) from falling out of the tail end.
5. Cement-stone dust-clay composite grouting material premixing device according to claim 1, characterized in that the discharging mechanism comprises a discharging seat, a side seat (62) fixedly arranged on the side surface of the discharging seat and a side shaft (66) rotatably arranged on the side seat (62), a worm (63) and an auxiliary synchronizing wheel (67) are fixedly arranged on the side shaft (66), the discharging impeller (61) is rotatably arranged in the discharging seat through an impeller main shaft (65), at least one end of the impeller main shaft (65) extends out of the discharging seat, a discharging synchronizing wheel (64) is fixedly arranged at one end of the impeller main shaft (65) extending out of the discharging seat, the worm (63) is meshed with the discharging synchronizing wheel (64), and the auxiliary synchronizing wheel (67) is directly connected with the first synchronizing wheel (12) through a second transmission belt (18).
6. The cement-stone powder-clay composite grouting material premixing device according to claim 1, wherein the rotary mixing box comprises a mixing box body and a mixing cavity arranged in the mixing box body, two mutually meshed mixing gears (81) are horizontally arranged in the mixing cavity, one of the mixing gears (81) is driven by a motor to rotate, charging ports (83) are respectively arranged on two sides of the top of the mixing box body, the number of the charging bins (82) is two, the bottoms of the charging bins are respectively communicated with the two charging ports (83), a cavity outlet is arranged in the center of the lower portion of the mixing cavity, the transition cylinder (70) is covered outside the cavity outlet, and the opening adjusting device is connected to the lower end of the transition cylinder (70).
7. The cement-stone dust-clay composite grouting material premixing device according to claim 6, characterized in that a vertical shaft is rotatably arranged in the transition cylinder (70), a power impeller (71) is coaxially and fixedly arranged at the top of the vertical shaft, and a dispersion grid (73) is coaxially and fixedly arranged at the bottom of the vertical shaft.
8. Cement-stone dust-clay composite grouting material premixing device according to claim 1, characterized in that a first rake level between the unloading level and the material thickness adjusting level is arranged above the conveying belt (1), a first rake plate (14) is arranged on the first rake level, the first rake plate (14) comprises a first plate body and rake bars uniformly arranged on the lower side of the first plate body, and the lower end of each rake bar is propped against the upper surface of the conveying belt (1).
9. The cement-stone powder-clay composite grouting material premixing device according to claim 1, characterized in that a second rake material level positioned at the downstream of the mixing position is arranged above the conveying belt (1), a second rake plate (15) is arranged on the second rake material level, the second rake plate (15) comprises a second plate body and rake holes uniformly formed in the lower side of the second plate body, and the lower ends of the rake holes penetrate through the second plate body downwards.
10. The cement-stone powder-clay composite grouting material premixing device according to claim 1, wherein a narrow opening device is arranged on the lower side of the discharging mechanism, the narrow opening device comprises a connecting seat, a fixed plate (92) and a movable plate (91), wherein the fixed plate (92) and the movable plate (91) are arranged on the lower side of the connecting seat, two sides of the fixed plate (92) and the movable plate (91) are connected through organ connecting pieces (93), the fixed plate (92), the movable plate (91) and the lower ends of the two organ connecting pieces (93) form a narrow moment discharging opening, a supporting cylinder (94), an adjusting rod (95) penetrating through the supporting cylinder (94) and a locking piece for positioning the adjusting rod (95) in the supporting cylinder (94) are fixedly arranged at the outer side edge of the fixed plate (92), one end of the adjusting rod (95) is fixedly connected with the same supporting rod (96), and the outer wall of the movable plate (91) is abutted against the supporting rod (96).

Description

Cement-stone powder-clay composite grouting material premixing device Technical Field The invention relates to the technical field of mixing devices. In particular to a cement-stone powder-clay composite grouting material premixing device. Background The reinforcement grouting is a technology for improving the integrity of the rock body and enhancing the strength of the surrounding rock by injecting pore-forming grouting slurry into the surrounding rock, and diffusing the slurry to cracks of the surrounding rock by grouting pressure to form a reinforcement zone, namely a grouting curtain, on the rock body. In the process of tunnel and foundation construction, the method is often used as a reinforcing measure. The prior grouting material is prepared mainly by preparing clay slurry, then adding other substances into the clay slurry, as disclosed in Chinese patent CN203765807U, preparing clay coarse slurry and clay fine slurry through a first-stage degritting pulping part, and then uniformly mixing the clay fine slurry and cement in a vortex high-speed pulping machine, thus, three stirring tanks are needed in the whole preparation process of the clay slurry, at least two stages of stirring tanks/stirring devices are needed even in the preparation process of the conventional grouting material, and the setting of the stirring tanks/stirring devices needs places, so that the cost of a slurry preparation station is difficult to save. Disclosure of Invention Therefore, the invention aims to solve the technical problem of providing a cement-stone powder-clay composite grouting material premixing device capable of realizing main material preparation and premixing. In order to solve the technical problems, the invention provides the following technical scheme: The cement-stone powder-clay composite grouting material premixing device comprises a belt conveyor, a plurality of feeding bins, a rotary mixing box, a transition barrel, an opening adjusting device and a discharging mechanism, wherein the rotary mixing box, the transition barrel, the opening adjusting device and the discharging mechanism are sequentially arranged on the lower side of the feeding bins, the belt conveyor comprises a frame, a conveying belt and a main shaft arranged at one end of the conveying belt, a discharging hole of the discharging mechanism is opposite to the conveying belt and marks the position of the material falling on the conveying belt as a discharging position, a material thickness adjusting position positioned on the upper side of the discharging position and a mixing position positioned on the lower side of the discharging position are arranged above the conveying belt, and a material thickness adjusting mechanism for adjusting the material thickness on the conveying belt is arranged on the material thickness adjusting position; The opening adjusting device comprises an opening plate capable of horizontally moving and an opening adjusting mechanism, wherein the discharging mechanism comprises a discharging impeller and a discharging synchronous wheel coaxially arranged with the discharging impeller, and the material thickness adjusting device comprises a baffle plate which moves up and down and a first adjusting mechanism for adjusting the height of the baffle plate; The main shaft of the conveyor is provided with a first synchronizing wheel, and the discharging synchronizing wheel is in transmission connection with the first synchronizing wheel through a second transmission belt, so that the rotation speed of the discharging impeller is positively related to the conveying speed of the conveying belt. Further, the first adjusting mechanism comprises a material blocking mounting plate, a material blocking support transversely clamped on the frame, an adjusting nut arranged in the center of the upper portion of the material blocking support, an adjusting screw meshed with the adjusting nut, a handle fixedly arranged at the top of the adjusting screw, a mounting seat fixedly arranged in the center of the top of the material blocking plate, a middle synchronizing wheel and a middle driving belt arranged on the side face of the frame, the bottom end of the adjusting screw is rotatably connected in the mounting seat, a material blocking gear and a material blocking synchronizing wheel are coaxially arranged on one material blocking mounting plate through a material blocking rotating shaft, sliding plates are fixedly arranged at the two ends of the material blocking plate and slide up and down in the material blocking support, a linkage plate is fixedly arranged on the sliding plate, a first tooth part is arranged on the linkage plate, the material blocking gear is meshed with the first tooth part, the material blocking synchronizing wheel is connected with the middle synchronizing wheel through the middle driving belt, and the middle synchronizing wheel is coaxially connected with a middle two synchronizing wheel which is connected with