CN-122009777-A - Feeding equipment, rubber-plastic composite modified asphalt preparation system and method

CN122009777ACN 122009777 ACN122009777 ACN 122009777ACN-122009777-A

Abstract

The invention provides feeding equipment, a rubber-plastic composite modified asphalt preparation system and a rubber-plastic composite modified asphalt preparation method, and relates to the field of conveying equipment. The feeding equipment comprises a conveying device, a sealing structure and a feeding device, wherein the conveying device comprises a conveying belt and a support, the sealing structure comprises two annular belts and two annular defect plates, the two annular belts are respectively arranged on two sides of the conveying belt, and an embedded groove is formed in one side, far away from the conveying belt, of the annular belts. According to the feeding equipment provided by the invention, the two annular belts are utilized to limit the conveyed rubber powder, and the annular belt is provided with the embedded grooves, so that the annular plate is embedded into the embedded grooves towards one side of the conveying belt, the height for limiting conveyed materials can be increased, and the problem that the running resistance of the equipment is increased due to the fact that fine powder in the conveyed materials enters the joints of rollers, bearings and the like through the two sides of the conveying belt and is worn out by the rollers, bearings and the like caused by the fact that the fine powder enters the joints of the rollers, the bearings and the like can be solved by arranging the sealing structure.

Inventors

LI DINGZHONG
TIAN YU
WANG MIAO
DENG ZHENGWEI
CHEN RONG
HUANG ANDONG
Li Biaozhu
KONG JIANGHONG
LIANG GANG
Hu Xingkuan

Assignees

中国水利水电第九工程局有限公司

Dates

Publication Date: 20260512
Application Date: 20260413

Claims (9)

1. The feeding equipment is characterized by comprising a conveying device, a feeding device and a feeding device, wherein the conveying device comprises a conveying belt and a bracket; The sealing structure comprises two annular belts and two ring-lacking plates, wherein the two annular belts are respectively arranged at two sides of the conveying belt, an embedded groove is formed in one side, far away from the conveying belt, of each annular belt, the two ring-lacking plates are arranged on the support and are positioned at two sides of the conveying belt, the inner side of each ring-lacking plate is embedded into the embedded groove of the corresponding annular belt, a gap is reserved between each ring-lacking plate and the inner wall of the embedded groove, and an opening is formed in the bottom of each ring-lacking plate; the two cleaning pieces are respectively positioned below the two annular belts; The cleaning piece comprises a mounting frame and cleaning brushes, wherein two mounting frames are respectively located below the annular belts, two cleaning brushes are respectively installed on two mounting frames, and cleaning ends of the cleaning brushes extend into the embedded grooves.
2. The feeding device of claim 1, further comprising a dust cover, wherein the dust cover is mounted at a feeding end of the conveying device, a discharge port is reserved between the dust cover and the conveying belt, and a feeding pipe is arranged at one end of the dust cover.
3. The feeding device according to claim 2, further comprising a dust collection device, wherein the dust collection device comprises a fixing frame, a dust collection box, a fan and a filtering structure, the dust collection box is installed on the support through the fixing frame, a discharging pipe of the dust collection box is suspended above the conveying belt, the filtering structure is installed in the dust collection box, and an exhaust pipe of the dust collection box is connected with an input pipe of the fan; the other end of the dust cover is provided with a dust exhaust pipe, the dust exhaust pipe is connected with a dust inlet pipe of the dust suction box, and the dust inlet pipe is positioned on the filtering side of the filtering structure.
4. The feeding device of claim 3, further comprising a blowback mechanism comprising a blowback member and an air inlet tube, the blowback member being disposed inside the dust box, an air outlet of the blowback member being directed toward a non-filtering side of the filtering structure, the air inlet tube delivering blowback gas to the blowback member.
5. The feeding device of claim 4, wherein the dust collection device further comprises a valve member, the valve member comprises a valve cylinder, a motor, a valve rod and two arc-shaped valve plates, the interior of the valve cylinder is divided into a first cavity and a second cavity by a partition plate, the valve rod sequentially penetrates through one end of the valve cylinder and the partition plate and then is connected with the motor, and the two arc-shaped valve plates are connected with the valve rod by corresponding connecting arms and are respectively positioned in the first cavity and the second cavity; the air inlet pipe is connected with the back blowing piece and the second cavity, the input pipe of the fan is communicated with the bottom of the first cavity, the output pipe of the fan is communicated with the bottom of the second cavity, the top of the first cavity is communicated with the exhaust pipe, the top of the second cavity is communicated with an air outlet pipe, and the first cavity is also communicated with an air delivery pipe; And in an initial state, the two arc-shaped valve plates are respectively used for plugging the air inlet pipe and the air delivery pipe.
6. The feeding device of claim 5, wherein the back-blowing mechanism further comprises a driving member and a sliding plate, the back-blowing member is tubular, the back-blowing member is slidably mounted inside the dust box through the sliding plate, and the driving member is used for driving the back-blowing member to move along the setting direction of the filtering structure.
7. The feeding device of claim 6, wherein the driving member comprises a sliding sleeve, a driving rod and a lifting block, the top end of the sliding sleeve penetrates through the dust suction box through a strip-shaped hole and then is connected with the sliding plate, the top end of the driving rod is in sliding connection with the sliding sleeve in a preset stroke, the bottom end of the driving rod is suspended above the conveying belt, and the lifting block is horizontally arranged on the driving rod; the conveying belt is provided with an assembly hole, and the driving rod is suspended above the assembly hole in an initial state; The valve member also comprises a lifting rod, one end of the lifting rod is connected with the valve rod, and the other end of the lifting rod supports the lifting block.
8. A rubber-plastic composite modified asphalt preparation system, which is characterized by comprising a crushing and grinding module, a magnetic separation module, a processing and production module and the feeding equipment as claimed in any one of claims 1-7; the crushing and grinding module is used for crushing and grinding the waste tires to form rubber powder; the processing production module is used for preparing the rubber powder into a modifier, and adding the modifier into asphalt to prepare rubber-plastic composite modified asphalt; The feeding equipment is used for conveying the rubber powder obtained after being processed by the crushing and grinding module to the magnetic separation module.
9. A method for preparing rubber-plastic composite modified asphalt, which is characterized by using the rubber-plastic composite modified asphalt preparation system as claimed in claim 8, comprising the following steps: S1, crushing and grinding junked tires through the crushing and grinding module to form rubber powder, and removing metal impurities in the rubber powder through the magnetic separation module; S2, the processing and production module adopts a high-temperature high-pressure desulfurization process to carry out desulfurization treatment on the rubber powder, and adjusts the length of a molecular chain of the rubber powder; S3, combining the rubber powder and the thermoplastic resin by the processing production module, and granulating the mixed material to obtain a rubber-plastic asphalt modifier; S4, the processing and production module is used for adding the rubber-plastic asphalt modifier into asphalt to obtain the rubber-plastic composite modified asphalt.

Description

Feeding equipment, rubber-plastic composite modified asphalt preparation system and method Technical Field The invention relates to the field of conveying equipment, in particular to feeding equipment, and a rubber-plastic composite modified asphalt preparation system and method. Background The core of the rubber-plastic composite modified asphalt is a rubber-plastic asphalt modifier, and the rubber-plastic composite modified asphalt is prepared by adding the rubber-plastic asphalt modifier into asphalt. The rubber-plastic asphalt modifier is prepared from waste tires, and the tires are required to be processed in multiple rounds, and the preparation method comprises the steps of crushing and grinding the tires to prepare rubber powder, magnetically separating the rubber powder to remove metal impurities, desulfurizing and the like. When the rubber powder is conveyed by the belt conveying equipment, fine powder in the rubber powder easily enters the joints of rollers, carrier rollers, bearings and the like from two sides of the conveying belt, so that roller clamping stagnation, bearing abrasion and the like can be caused, and the running resistance of the equipment can be increased due to fine powder extrusion agglomeration. There is room for improvement in how to avoid the problem of fines entering the joints of rollers, idlers, bearings, etc. of belt conveyor equipment. Therefore, it is necessary to provide a new feeding device, a system and a method for preparing rubber-plastic composite modified asphalt, so as to solve the technical problems. Disclosure of Invention The invention provides feeding equipment, which solves the problem of how to prevent fine powder from entering joints of rollers, carrier rollers, bearings and the like of belt conveying equipment. In order to solve the technical problems, the feeding equipment provided by the invention comprises a conveying device, a feeding device and a feeding device, wherein the conveying device comprises a conveying belt and a bracket; The sealing structure comprises two annular belts and two ring-lacking plates, wherein the two annular belts are respectively arranged at two sides of the conveying belt, an embedded groove is formed in one side, far away from the conveying belt, of each annular belt, the two ring-lacking plates are arranged on the support and are positioned at two sides of the conveying belt, the inner side of each ring-lacking plate is embedded into the embedded groove of the corresponding annular belt, a gap is reserved between each ring-lacking plate and the inner wall of the embedded groove, and an opening is formed in the bottom of each ring-lacking plate; the two cleaning pieces are respectively positioned below the two annular belts; The cleaning piece comprises a mounting frame and cleaning brushes, wherein two mounting frames are respectively located below the annular belts, two cleaning brushes are respectively installed on two mounting frames, and cleaning ends of the cleaning brushes extend into the embedded grooves. The invention also provides a rubber and plastic composite modified asphalt preparation system which comprises a crushing and grinding module, a magnetic separation module, a processing and production module and a feeding device; the crushing and grinding module is used for crushing and grinding the waste tires to form rubber powder; the processing production module is used for preparing the rubber powder into a modifier, and adding the modifier into asphalt to prepare rubber-plastic composite modified asphalt; The feeding equipment is used for conveying the rubber powder obtained after being processed by the crushing and grinding module to the magnetic separation module. The invention also provides a preparation method of the rubber-plastic composite modified asphalt, which uses a preparation system of the rubber-plastic composite modified asphalt, and comprises the following steps: S1, crushing and grinding junked tires through the crushing and grinding module to form rubber powder, and removing metal impurities in the rubber powder through the magnetic separation module; S2, the processing and production module adopts a high-temperature high-pressure desulfurization process to carry out desulfurization treatment on the rubber powder, and adjusts the length of a molecular chain of the rubber powder; S3, combining the rubber powder and the thermoplastic resin by the processing production module, and granulating the mixed material to obtain a rubber-plastic asphalt modifier; S4, the processing and production module is used for adding the rubber-plastic asphalt modifier into asphalt to obtain the rubber-plastic composite modified asphalt. Compared with the related art, the feeding equipment provided by the invention has the following beneficial effects: The invention provides feeding equipment, wherein annular belts are arranged on two sides of a conveying belt, the two annular belts are used for limiting conveye