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CN-117531794-B - Online heavy impurity removal device

CN117531794BCN 117531794 BCN117531794 BCN 117531794BCN-117531794-B

Abstract

The invention relates to an on-line heavy impurity removing device, which is characterized in that a sand collecting pit is formed in the bottom wall of a tank body, a first cyclone tank is arranged at the bottom of the first cyclone tank, a first cleaning tank is arranged at the bottom of the first cyclone tank, heavy impurities in the sand collecting pit are pumped out by a separating pump, the heavy impurities are injected into the first cyclone tank through a first input pipe, are rotationally separated at a high speed in the first cyclone tank, heavy impurities such as gravel are sunk into a first sand collecting area, organic matters and the like are separated to the top of the first cyclone tank and enter the tank body through a third separating pipe for cleaning treatment, a second electromagnetic valve is opened after that, heavy impurities such as gravel and the like precipitated in the first sand collecting area are flowed into the first cleaning tank, the cleaning pump pumps water flowing out of the tank body into the first cleaning tank for cleaning the heavy impurities such as gravel, the heavy impurities such as gravel are discharged out through a first impurity outlet, the heavy impurities in time are pumped out on line, the harm of the tank body caused by heavy impurity precipitation is avoided, the service life of the tank body is prolonged, the sediment cleaned by opening the tank body is avoided, and the treatment of sediment is reduced.

Inventors

  • WANG XIAOWEI
  • WANG JIE
  • ZHU JINXING
  • LIU HONGXIA

Assignees

  • 北京环境工程技术有限公司

Dates

Publication Date
20260512
Application Date
20231225

Claims (9)

  1. 1. An online heavy impurity removal device comprises a tank body (1), wherein a stirring shaft (101) is rotatably arranged in the tank body (1) along the axial direction, a purification liquid outlet (105) communicated with the inside of the tank body is arranged at the top of the tank body (1), the online heavy impurity removal device is characterized by further comprising an impurity removal unit, a sand collecting pit (103) is formed in the bottom wall (104) of the tank body (1), the impurity removal unit comprises a first cyclone tank (2) and a first cleaning tank (4) connected to the bottom of the first cyclone tank (2), a second electromagnetic valve (23) is arranged at the joint of the first cyclone tank (2) and the first cleaning tank (4), the upper part of the first cyclone tank (2) is cylindrical, the lower part of the first cyclone tank (2) is conical, a first input pipe (202) communicated with the inside of the first cyclone tank is arranged at the upper side of the conical lower part of the first cyclone tank, a first sand collecting area (201) is arranged at the upper side of the first cleaning tank (4), a first outlet (402) communicated with the inside of the first cyclone tank is arranged at the lower side of the first cleaning tank (4), a second electromagnetic valve (23) is arranged at the joint of the first cyclone tank (2) and is communicated with the first inlet (4) and the first inlet (3) is communicated with the first outlet (25) of the first sand collecting pit (4), the other end of the first separation pipe (12) penetrates through the side wall of the tank body (1) to be communicated with the first input pipe (202), the first separation pipe (12) is provided with a separation pump (10), a third separation pipe (14) communicated with the inside of the first cyclone tank (2) is arranged at the top of the first cyclone tank, one end, far away from the first cyclone tank (2), of the third separation pipe (14) is communicated with the inside of the tank body (1), a purified liquid output pipe (15) is arranged at the purified liquid outlet (105), the purified liquid output pipe (15) is communicated with the first inlet (401) through a first cleaning pipe (16), the first cleaning pipe (16) is provided with a cleaning pump (11), and the first outlet (402) is communicated with the purified liquid output pipe (15) through a sixth cleaning pipe (21). The bottom wall (104) of the tank body (1) is inclined downwards towards the center direction of the sand collecting pit (103); The device also comprises a second cleaning pipe (17), a third cleaning pipe (18), a fourth cleaning pipe (19), a fifth cleaning pipe (20), a second cyclone tank (3) and a second cleaning tank (5) connected to the bottom of the second cyclone tank (3), wherein a third electromagnetic valve (24) is arranged at the joint of the second cyclone tank (3) and the second cleaning tank (5), the upper part of the second cyclone tank (3) is cylindrical, the lower part of the second cyclone tank is conical, a second input pipe (302) communicated with the inside of the conical lower part of the second cyclone tank (3) is arranged at the upper side of the conical lower part of the second cyclone tank, a second sand collecting area (301) is arranged at the lower side of the conical lower part of the second cyclone tank (3), a second outlet (502) communicated with the inside of the second cyclone tank (5) is arranged at the upper side of the second cyclone tank, the lower side of the first cyclone tank is provided with a second inlet (501) communicated with the inside of the first cyclone tank, a second impurity outlet is formed in the bottom of the second cleaning tank (5), a fifth electromagnetic valve (26) is arranged between the second cleaning tank (5) and the second impurity outlet, the other end of the first separation pipe (12) is communicated with the second input pipe (302), the top of the second cyclone tank (3) is provided with a second separation pipe (13) communicated with the inside of the second cyclone tank, one end of the second separation pipe (13) far away from the second cyclone tank (3) is communicated with the first input pipe (202), one end of the second cleaning pipe (17) is communicated with the first inlet (401), one end of the third cleaning pipe (18) is communicated with the second inlet (501), the other end of the second cleaning pipe (17) and the other end of the third cleaning pipe (18) are communicated with the first cleaning pipe (16), the second cleaning pipe (17) is provided with an eighth electromagnetic valve (29), one end of the third cleaning pipe (18) is far away from the second cyclone tank (3) and is communicated with the first inlet (19), and the other end of the fourth cleaning pipe (18) is communicated with the fifth inlet (19) and the other end of the fourth cleaning pipe (20) is communicated with the fifth inlet (502).
  2. 2. The on-line heavy impurity removal device according to claim 1, wherein the sand collecting pit (103) is located right below the stirring shaft (101), and the stirring shaft (101) is provided with a sand scraping plate (102) for scraping heavy impurities precipitated on the bottom wall (104) of the tank body (1).
  3. 3. The on-line heavy impurity removal device according to claim 1 is characterized by further comprising a feeding barrel body, wherein a spiral feeding rod (7) is rotatably arranged in the feeding barrel body along the axial direction of the feeding barrel body, the spiral feeding rod (7) is located right below the first impurity outlet and the second impurity outlet, feeding holes corresponding to the first impurity outlet and the second impurity outlet are formed in the feeding barrel body and used for enabling heavy impurities of the first impurity outlet and the second impurity outlet to fall into the spiral feeding rod (7), the feeding barrel body is provided with a sand outlet (8), a motor (9) is further arranged in the feeding barrel body, and an output shaft of the motor (9) is connected with the spiral feeding rod (7) and drives the spiral feeding rod (7) to rotate.
  4. 4. The on-line heavy impurity removal device according to claim 3, further comprising a sand storage box (6), wherein the bottom wall of the sand storage box (6) is obliquely arranged, the feeding cylinder is arranged outside the sand storage box (6) and parallel to the bottom wall of the sand storage box (6), the bottom of the spiral feeding rod (7) can movably penetrate through the side wall of the sand storage box (6) and extend into the sand storage box (6), and one end, far away from the first cleaning tank (4), of the first impurity outlet and one end, far away from the second cleaning tank (5), of the second impurity outlet are communicated with the inside of the sand storage box (6).
  5. 5. An on-line heavy impurity removal device according to claim 4, wherein said reservoir (6) is provided with a drain port (601) communicating with the inside thereof.
  6. 6. The on-line heavy impurity removal device according to claim 1, wherein a first observation window (203) is arranged at the top of the first sand collecting area (201), and a second observation window (303) is arranged at the top of the second sand collecting area (301).
  7. 7. The on-line heavy impurity removal device according to claim 1, wherein the upper part of the first cleaning tank (4) is in an inverted cone shape, the lower part of the first cleaning tank is in a cylinder shape, the first inlet (401) is arranged at the bottom of the cylindrical lower part of the first cleaning tank (4), the first outlet (402) is arranged at the top of the inverted cone-shaped upper part of the first cleaning tank (4), the upper part of the second cleaning tank (5) is in an inverted cone shape, the lower part of the second cleaning tank is in a cylinder shape, the second inlet (501) is arranged at the bottom of the cylindrical lower part of the second cleaning tank (5), and the second outlet (502) is arranged at the top of the inverted cone-shaped upper part of the second cleaning tank (5).
  8. 8. The on-line heavy impurity removal device according to claim 7, wherein the first cleaning tank (4) has a volume at least twice the volume of the first sand collection area (201), and the second cleaning tank (5) has a volume at least twice the volume of the second sand collection area (301).
  9. 9. An on-line heavy impurity removal device according to claim 1, wherein the first separation pipe (12) between the tank (1) and the separation pump (10) is provided with a first electromagnetic valve (22), the third separation pipe (14) is provided with a tenth electromagnetic valve (31), the first cleaning pipe (16) is provided with a sixth electromagnetic valve (27), and the sixth cleaning pipe (21) is provided with a seventh electromagnetic valve (28).

Description

Online heavy impurity removal device Technical Field The invention relates to the technical field of garbage disposal, in particular to an online heavy impurity removal device. Background The organic matter content of kitchen waste after classification is gradually increased, and in order to treat the waste, a technical route of pretreatment and anaerobic fermentation is generally adopted. The method utilizes microorganisms in the nature to carry out metabolism to generate clean energy source-methane, and realizes harmless treatment and resource utilization of urban organic solid waste. However, in the pretreatment process of organic garbage such as kitchen garbage, a large amount of inorganic impurities enter a liquid storage tank and an anaerobic fermentation tank after being crushed. Because of the large volumes of these tanks (e.g., anaerobic fermenters typically have volumes between 5000m 3 and 10000m 3), the agitation rate within the tanks is low and inorganic heavy impurities cannot be suspended in the liquid. The relative proportion of inorganic impurities increases gradually as the organic material is converted to biogas. These impurities can slowly deposit to the tank bottom, thereby reducing the service life of the tank body, and even possibly leading to the scrapping of the liquid storage tank and the anaerobic fermentation tank in serious cases. These sediments also have an effect on the stable operation of the whole system, and periodic can opening maintenance is required, however, can opening maintenance is a troublesome task, production is required to be stopped, the physical cost is increased, and in addition, the subsequent treatment of the sediments is also difficult. Disclosure of Invention Therefore, the invention provides an online heavy impurity removal device, which mainly solves the technical problems of tank body scrapping, tank opening overhauling and sediment cleaning increasing treatment cost and great difficulty in subsequent treatment of sediment caused by incapability of timely removing heavy impurities in a liquid storage tank and an anaerobic fermentation tank body in the prior art. In order to achieve the above object, the present invention provides the following technical solutions: The online heavy impurity removing device comprises a tank body, wherein a stirring shaft is rotatably arranged in the tank body along the axial direction, a purifying liquid outlet communicated with the inside of the tank body is formed in the top of the tank body, an impurity removing unit is further arranged, a sand collecting pit is formed in the bottom wall of the tank body, the impurity removing unit comprises a first cyclone tank and a first cleaning tank connected to the bottom of the first cyclone tank, a second electromagnetic valve is arranged at the joint of the first cyclone tank and the first cleaning tank, the upper part of the first cyclone tank is cylindrical, the lower part of the first cyclone tank is conical, a first input pipe communicated with the inside of the first cyclone tank is arranged at the upper side of the conical lower part of the first cyclone tank, a first sand collecting area is arranged at the lower side of the first cyclone tank, a first outlet communicated with the inside of the first cyclone tank is arranged at the upper side of the first cleaning tank, a first inlet communicated with the inside of the first cleaning tank is arranged at the lower side of the first cleaning tank, a fourth electromagnetic valve is arranged between the first cyclone tank and the first cleaning tank, the collecting pit is communicated with one end of the first separating pipe, the other end of the first cyclone tank is cylindrical, a first input pipe is communicated with the first separating pipe is arranged at the lower side of the first cyclone tank, a first inlet communicated with the first separating pipe is communicated with the first inlet through the first side wall of the first cyclone tank, a first inlet is communicated with the first inlet is arranged at the first inlet pump is communicated with the cleaning pump is arranged at the upper side of the first inlet. Preferably, the bottom wall of the tank body is inclined downwards towards the center of the sand collecting pit. The sand collecting pit is arranged right below the stirring shaft, and the stirring shaft is provided with a sand scraping plate for scraping heavy impurities such as gravel and the like deposited on the bottom wall of the tank body. The cleaning device comprises a first cyclone tank, a first electromagnetic valve, a first separation pipe, a first electromagnetic valve, a second electromagnetic valve, a first separation pipe, a second electromagnetic valve, a first electromagnetic valve, a second electromagnetic valve, a first cleaning pipe, a second electromagnetic valve, a third electromagnetic valve, a first separation pipe, a second electromagnetic valve, a first cleaning pipe and a second