Pipeline dredging equipment

Abstract

The utility model relates to pipeline dredging equipment which comprises a filter (1), a purifier (2), a fresh water tank (3) and a flushing device (4), the filter is used for precipitating and filtering flushing water, the purifier is communicated with the filter and used for purifying the flushing water treated by the filter to obtain fresh water, and the fresh water tank is communicated with the purifier and used for purifying the flushing water treated by the filter to obtain fresh water. The flushing device comprises a flushing pump (41), a flushing pipe (42) and a water return pipe (43); and an inlet of the flushing pump is communicated with the fresh water tank. One end of the flushing pipe is communicated with an outlet of the flushing pump, the other end of the flushing pipe is provided with a first connecting piece (44) used for being connected with a conveying pipeline, and the first connecting piece is detachably connected with the flushing pipe. One end of the water return pipe is communicated with the filter, the other end of the water return pipe is provided with a second connecting piece (45) used for being connected with the conveying pipeline, and the second connecting piece is detachably connected with the water return pipe. According to the utility model, the cleaning efficiency of salt deposition on the conveying pipeline can be improved, and the flushing water can be reused.

Description

Technical Field

[0001] The utility model relates to pipeline dredging equipment, in particular to the structure of the pipeline dredging equipment. Background Art

[0002] Salt lake brine is rich in minerals such as sodium, potassium, lithium, and magnesium. Carnallite, obtained by drying salt lake brine, is the main raw material for the production of potassium chloride. The main processes for producing potassium chloride from carnallite ore include reverse flotation, direct flotation, and thermal crystallization. In the potassium chloride production process, different types of pipelines are required to transport materials such as brine, carnallite slurry, refined potassium mother liquor, and filtrate, all of which contain salt crystals and other impurities. Salt crystals will cause salt to form on the walls of the pipeline. Salt and impurities will reduce the fluidity of the pipeline and increase the pressure of the water pump, which can easily cause equipment failure and damage. If the salt is not cleaned from the pipeline, after long-term use, the salt will cause the pipeline to be completely blocked, affecting normal production.

[0003] Because pipelines are narrow in diameter and long in length, and some are buried underground, salt buildup on the pipeline walls makes it difficult to remove the salt. Existing methods for cleaning salt buildup typically involve flushing fresh water through a flushing pipe for shorter pipelines to dissolve and flush the salt. Longer pipelines require cutting the pipes and flushing them with fresh water to dissolve and flush the salt. Because pipelines vary in size, flushing pipes with corresponding diameters are required to connect these pipes, creating a complex and inefficient process that is time-consuming and labor-intensive, impacting normal production.

[0004] Moreover, the flushing water is discharged after flowing out from the other side of the conveying pipe, which is inefficient, and the flushing water contains a large amount of salt, which will pollute the environment.

[0005] The purpose of the utility model is to solve the problem of inconvenience and low efficiency in cleaning salt deposits in the existing potassium chloride production process.

[0006] The second purpose is to solve the problem of direct discharge of flushing water after cleaning and salting in the existing potassium chloride production process, which pollutes the environment and wastes water resources. Utility Model Content

[0007] In order to solve the above problems, the utility model provides a pipeline dredging device, including a filter 1, a purifier 2, a fresh water tank 3 and a flushing device 4. The filter 1 is used to precipitate and filter the flushing water. The purifier 2 is connected to the filter 1 and is used to purify the flushing water treated by the filter 1 to obtain fresh water. The fresh water tank 3 is connected to the purifier 2 and is used to store the fresh water produced by the purifier 2. The flushing device 4 includes a flushing pump 41, a flushing pipe 42 and a return pipe 43. The inlet of the flushing pump 41 is connected to the fresh water tank 3. One end of the flushing pipe 42 is connected to the outlet of the flushing pump 41, and the other end is provided with a first connecting member 44 for connecting to a delivery pipeline. The first connecting member 44 and the flushing pipe 42 are detachably connected. The return pipe 43 is connected to the filter 1 at one end, and is provided with a second connecting member 45 for connecting to a delivery pipeline at the other end. The second connecting member 45 and the return pipe 43 are detachably connected.

[0008] When the present invention is used, the first connecting piece 44 and the second connecting piece 45 of appropriate sizes are selected according to the diameter of the delivery pipe 6, the flushing pipe 42 is connected to one end of the delivery pipe 6 through the first connecting piece 44, and the return pipe 43 is connected to the other end of the delivery pipe 6 through the second connecting piece 45. The fresh water in the fresh water tank 3 is pumped into the delivery pipe 6 at high pressure through the flushing pump 41. After the salt in the delivery pipe 6 is dissolved by the fresh water, the flushing water with dissolved salt is transported to the filter 1 through the return pipe 43 for precipitation and filtration, and then enters the purifier 2 for purification to obtain fresh water, and the fresh water enters the fresh water tank 3 for storage.

[0009] The utility model provides a detachable connection between the first connector 44 and the flushing pipe 42, and a detachable connection between the second connector 45 and the return pipe 43. The first connector 44 and the second connector 45 of appropriate sizes can be selected according to the diameter of the delivery pipe. The flushing pipe 42 is quickly connected to one end of the delivery pipe through the first connector 44, and the return pipe 43 is quickly connected to the other end of the delivery pipe through the second connector 45, thereby improving the efficiency of cleaning salt deposits in the delivery pipe. A filter 1 is provided to precipitate and filter the flushing water, and a purifier 2 purifies the flushing water treated by the filter 1 to obtain fresh water. The flushing water can be reused, thereby preventing environmental pollution and conserving fresh water resources.

[0010] Preferably, the first connecting member 44 includes a connecting tube 441, which is a conical tube, one end of which is provided with a first flange 442 for connecting to the flushing pipe 42, and the other end of which is provided with a second flange 443 for connecting to the conveying pipe. The second connecting member 45 has the same structure as the first connecting member 44.

[0011] The connecting cylinder 441 is set as a conical cylinder, and a first flange 442 for connecting to the flushing pipe 42 is set at one end, and a second flange 443 for connecting to the conveying pipe is set at the other end. The second connecting piece 45 and the first connecting piece 44 of corresponding sizes can be set according to different types of conveying pipes. When flushing the conveying pipe, it is only necessary to replace the second connecting piece 45 and the first connecting piece 44 corresponding to the conveying pipe, which saves time and labor, is simple to operate, and improves the efficiency of cleaning salt deposits in the conveying pipe.

[0012] Preferably, the purifier 2 includes a tank body 11, a settling cylinder 12, and a filter plate 13. The top of the tank body 11 is provided with a liquid inlet 111 and a dosing port 113, and the bottom of the tank body 11 is provided with a liquid outlet 114 and a slag discharge port 115, forming a processing chamber inside. The settling cylinder 12 is a cylinder, vertically arranged in the processing chamber, with an open upper end and a closed lower end. A discharge pipe 14 is fixedly arranged at the bottom, one end of the discharge pipe 14 is connected to the bottom of the settling cylinder 12, and the other end is connected to the slag discharge port 115. The filter plate 13 is annular and fixedly arranged in the processing chamber. The inner ring of the filter plate 13 is fixedly connected to the upper end of the settling cylinder 12, and the outer ring of the filter plate 13 is fixedly connected to the inner side wall of the housing 21.

[0013] When the purifier 2 is working, the flushing water enters the sedimentation cylinder 12 through the liquid inlet 111, and the reagent is added from the dosing port 113, so that the flushing water and the reagent mix and react in the sedimentation chamber. The upper clear liquid after the reaction is filtered through the filter plate 13 and enters the bottom of the treatment chamber and is discharged regularly. The impurities in the wastewater and the flocculants produced by the reaction with the reagent are precipitated and discharged regularly from the slag discharge port 115.

[0014] Preferably, the purifier 2 further comprises a scraping device 5, comprising a scraping motor 51, a scraping rod 52, a scraping plate 53, and a brush 54. The scraping motor 51 is fixedly mounted on the top of the tank body 11. The scraping rod 52 is vertically mounted, with its upper end fixedly connected to the rotating shaft of the scraping motor 51 and its lower end extending through the tank body 11 to the upper end of the sedimentation cylinder 12. The scraping plate 53 is disposed above the filter plate 13 and parallel to the filter plate 13, with one end fixedly connected to the scraping rod 52 and the other end extending close to the inner wall of the tank body 11. The brush 54 is fixedly mounted on the scraping plate 53, with its lower end in contact with the top surface of the filter plate 13.

[0015] A scraping device 5 is provided, and a scraping plate 53 is connected to a scraping rod 52. When the stirring rod rotates, the scraping plate 53 can be driven to rotate, so that the brush 54 on the scraping plate 53 scrapes the filter plate 13 to prevent the filter holes on the filter plate 13 from being blocked.

[0016] Preferably, a liquid inlet pipe 15 and a drug inlet pipe 16 are provided in the purifier 2. The liquid inlet pipe 15 is fixedly arranged in the processing chamber, one end of which is connected to the liquid inlet 111, and the other end extends to the top of the sedimentation cylinder 12. A drug inlet 152 is provided on the side wall of the liquid inlet pipe 15, and the drug inlet pipe 16 is connected to the drug adding port 113 and the drug inlet 152 respectively.

[0017] The drug inlet pipe 16 is provided to connect the drug adding port 113 and the drug inlet 152 respectively, so that the drug is added into the water inlet pipe, which can make the drug fully dispersed in the flushing water and fully react with the drug, thereby improving the flushing water treatment efficiency.

[0018] Preferably, a baffle 151 is provided in the liquid inlet pipe 15, and the baffle 151 is located below the drug inlet 152. The baffle 151 can disturb the flushing water in the liquid inlet pipe 15, further making the drug and the flushing water mix evenly, thereby improving the flushing water treatment efficiency.

[0019] Preferably, the purifier 2 includes a housing 21, a heating coil 22, and a heat exchange device 23. The housing 21 is provided with a purification inlet 211 and a purification outlet 212. The interior is divided by a partition plate 24 into an evaporation chamber 213 located at the bottom of the housing 21 and a condensation chamber 214 located at the top of the housing 21. A discharge port 215 is provided on the bottom plate of the housing 21. The partition plate 24 is conical, with its tip facing upward and a steam outlet 216 provided at the tip. The purification inlet 211 communicates with the upper portion of the evaporation chamber 213, and the purification outlet 212 communicates with the lower portion of the condensation chamber 214. The heating coil 22 is disposed within the evaporation chamber 213, and the heat exchange device 23 is disposed within the condensation chamber 214.

[0020] The interior of the shell 21 is divided into an evaporation chamber 213 and a water purification chamber by a partition plate 24. A heating coil 22 is set in the evaporation chamber 213. The flushing water in the evaporation chamber 213 can be heated and evaporated by the heating coil 22, so that the steam enters the condensation chamber 214 and condenses in the condensation chamber 214 to obtain fresh water, thereby purifying the flushing water and reusing it, saving fresh water. The concentrated brine in the evaporation chamber 213 is discharged regularly and used as raw materials in other workshops to prevent environmental pollution.

[0021] Preferably, a flow meter 112 is provided on the liquid inlet 111. The flow meter 112 can measure the amount of flushing water entering, thereby adding a corresponding amount of medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 . Schematic diagram of the overall structure of the pipeline dredging equipment;

[0023] Figure 2 .Schematic diagram of the overall structure of the first connecting member;

[0024] Figure 3 .Schematic diagram of the filter's internal structure;

[0025] Figure 4 . Figure 3 Schematic diagram of the middle AA section;

[0026] Figure 5 .Schematic diagram of the internal structure of the liquid inlet pipe;

[0027] Figure 6 .Schematic diagram of the internal structure of the purifier;

[0028] Figure 7 .Usage status structure diagram.

[0029] In the figure, 1. Filter, 11. Tank, 111. Liquid Inlet, 112. Flow Meter, 113. Dosing Port, 114. Liquid Outlet, 115. Slag Discharge Port, 116. Liquid Outlet Valve, 117. Slag Discharge Valve, 12. Sedimentation Cylinder, 13. Filter Plate, 14. Discharge Pipe, 15. Liquid Inlet Pipe, 151. Baffle, 152. Drug Inlet, 16. Drug Inlet Pipe, 2. Purifier, 21. Shell, 211. Purification Inlet, 212. Purification Outlet, 213. Evaporation Chamber, 214. Condensation Chamber, 215. Discharge Port, 216. Evaporation Chamber Steam inlet, 217. Discharge valve, 218. Outlet valve, 22. Heating coil, 23. Heat exchange device, 24. Partition plate, 3. Fresh water tank, 31. Water inlet, 32. Water outlet, 33. Outlet valve, 4. Flushing device, 41. Flushing pump, 42. Flushing pipe, 43. Return pipe, 44. First connecting piece, 441. Connecting cylinder, 442. First flange, 443. Second flange, 45. Second connecting piece, 5. Scraping device, 51. Scraping motor, 52. Scraping rod, 53 Scraping plate, 54. Brush, 6. Delivery pipeline. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0031] like Figure 1 As shown, the pipeline dredging equipment includes a filter 1, a purifier 2, a fresh water tank 3 and a flushing device 4. The filter 1 is provided with a liquid inlet 111 and a liquid outlet 114. The filter 1 is used to precipitate and filter the flushing water. The liquid outlet 114 is provided with a liquid outlet valve 116.

[0032] A flow meter 112 is provided on the liquid inlet 111. The flow meter 112 can measure the amount of flushing water entering, thereby adding a corresponding amount of medicine.

[0033] The purifier 2 is provided with a purification inlet 211 and a purification outlet 212. The purification inlet 211 is connected to the liquid outlet 114 of the filter 1 and is used to purify the flushing water treated by the filter 1 to obtain fresh water.

[0034] The fresh water tank 3 is provided with a water inlet 31 and a water outlet 32. The water inlet 31 is communicated with the purifier 2 and is used to store the fresh water produced by the purifier 2. The water outlet 32 is provided with a water outlet valve 33.

[0035] The flushing device 4 includes a flushing pump 41 , a flushing pipe 42 and a return pipe 43 . The inlet of the flushing pump 41 is connected to the water outlet 32 of the fresh water tank 3 .

[0036] One end of the flushing pipe 42 is connected to the outlet of the flushing pump 41, and the other end is provided with a first connector 44 for connecting to the delivery pipeline. The first connector 44 and the flushing pipe 42 are detachably connected. One end of the return pipe 43 is connected to the filter 1, and the other end is provided with a second connector 45 for connecting to the delivery pipeline. The second connector 45 and the return pipe 43 are detachably connected.

[0037] The filter 1 is set to precipitate and filter the flushing water, and the purifier 2 purifies the flushing water treated by the filter 1 to obtain fresh water. The flushing water can be reused to prevent environmental pollution and save fresh water resources.

[0038] like Figure 2 As shown, the first connecting member 44 includes a connecting tube 441, which is a conical tube with a first flange 442 at one end for connecting to the flushing pipe 42 and a second flange 443 at the other end for connecting to the delivery pipeline.

[0039] The second connecting member 45 has the same structure as the first connecting member 44 and will not be described in detail here.

[0040] The connecting cylinder 441 is set as a conical cylinder, and a first flange 442 for connecting to the flushing pipe 42 is set at one end, and a second flange 443 for connecting to the conveying pipe is set at the other end. The second connecting piece 45 and the first connecting piece 44 of corresponding sizes can be set according to different types of conveying pipes. When flushing the conveying pipe, it is only necessary to replace the second connecting piece 45 and the first connecting piece 44 corresponding to the conveying pipe, which saves time and labor, is simple to operate, and improves the efficiency of cleaning salt deposits in the conveying pipe.

[0041] like Figure 3 and Figure 4 As shown, the purifier 2 includes a tank body 11, a sedimentation cylinder 12, a filter plate 13 and a scraping device 5. The top of the tank body 11 is provided with a liquid inlet 111 and a dosing port 113, and the bottom of the tank body 11 is provided with a liquid outlet 114 and a slag discharge port 115, forming a processing chamber inside.

[0042] The slag discharge port 115 is provided with a slag discharge valve 117 .

[0043] The sedimentation cylinder 12 is a cylinder, which is vertically arranged in the processing chamber, with an open upper end and a closed lower end. A discharge pipe 14 is fixedly arranged at the bottom. One end of the discharge pipe 14 is connected to the bottom of the sedimentation cylinder 12, and the other end is connected to the slag discharge port 115.

[0044] The filter plate 13 is annular and fixedly disposed in the processing chamber. The inner ring of the filter plate 13 is fixedly connected to the upper end of the sedimentation cylinder 12 , and the outer ring of the filter plate 13 is fixedly connected to the inner wall of the housing 21 .

[0045] The scraping device 5 includes a scraping motor 51 , a scraping rod 52 , a scraping plate 53 and a brush 54 . The scraping motor 51 is fixedly disposed on the top of the tank body 11 .

[0046] The scraping rod 52 is vertically arranged, with the upper end fixedly connected to the rotating shaft of the scraping motor 51 and the lower end extending through the tank body 11 to the upper end of the sedimentation cylinder 12.

[0047] The scraping plate 53 is arranged above the filter plate 13 and is parallel to the filter plate 13. One end is fixedly connected to the scraping rod 52 through a connecting rod, and the other end extends to near the inner wall of the tank body 11. The brush 54 is fixedly arranged on the scraping plate 53, and the lower end of the brush 54 contacts the top surface of the filter plate 13.

[0048] When the purifier 2 is operating, flushing water enters the settling drum 12 through the liquid inlet 111, and the reagent is added through the dosing port 113. The flushing water and the reagent mix and react in the settling chamber. The supernatant after the reaction is filtered through the filter plate 13 and enters the bottom of the treatment chamber for regular discharge. Impurities in the wastewater and flocs produced by the reaction with the reagent are precipitated and discharged from the slag discharge port 115 at regular intervals. When impurities are found on the filter plate 13, the scraping motor 51 drives the hanging sweeping plate to rotate, causing the brush 54 on the scraping sweeping plate 53 to scrape the filter plate 13 to prevent the filter holes on the filter plate 13 from being clogged.

[0049] like Figure 3 and Figure 5 As shown, a liquid inlet pipe 15 and a drug inlet pipe 16 are provided inside the purifier 2. The liquid inlet pipe 15 is fixedly arranged in the processing chamber, one end of which is connected to the liquid inlet 111, and the other end extends to the top of the sedimentation cylinder 12. A drug inlet 152 is provided on the side wall of the liquid inlet pipe 15, and the drug inlet pipe 16 is connected to the drug inlet 113 and the drug inlet 152 respectively.

[0050] A baffle 151 is provided in the liquid inlet pipe 15 , and the baffle 151 is located below the medicine inlet 152 .

[0051] The medicine inlet pipe 16 is provided to connect the medicine adding port 113 and the medicine inlet port 152 respectively, so that the medicine is added into the water inlet pipe. The baffle 151 can disturb the flushing water in the liquid inlet pipe 15, so that the medicine and the flushing water are evenly mixed, thereby improving the flushing water treatment efficiency.

[0052] like Figure 6 As shown, the purifier 2 includes a housing 21, a heating coil 22, and a heat exchange device 23. The housing 21 is provided with a purification inlet 211 and a purification outlet 212. The interior is divided into an evaporation chamber 213 located at the bottom of the housing 21 and a condensation chamber 214 located at the top of the housing 21 by a partition plate 24. A discharge port 215 is provided on the bottom plate of the housing 21. A discharge valve 217 is provided on the discharge port 215.

[0053] The partition plate 24 is conical, with its tip facing upward and provided with a steam port 216. The purification inlet 211 communicates with the upper portion of the evaporation chamber 213, and the purification outlet 212 communicates with the lower portion of the condensation chamber 214. An outlet valve 218 is provided on the purification outlet 212.

[0054] The heating coil 22 is disposed in the evaporation chamber 213 .

[0055] The heat exchanger 23 is disposed in the condensing chamber 214 to cool the steam and condense it into water. The heat exchanger 23 can be a finned tube heat exchanger or a bellows heat exchanger, etc., which can be purchased from the market or customized. The steps are not repeated here.

[0056] The interior of the shell 21 is divided into an evaporation chamber 213 and a water purification chamber by a partition plate 24. A heating coil 22 is set in the evaporation chamber 213. The flushing water in the evaporation chamber 213 can be heated and evaporated by the heating coil 22, so that the steam enters the condensation chamber 214 and condenses in the condensation chamber 214 to obtain fresh water, thereby purifying the flushing water and reusing it, saving fresh water. The concentrated brine in the evaporation chamber 213 is discharged regularly and used as raw materials in other workshops to prevent environmental pollution.

[0057] like Figure 7 As shown, when in use, according to the diameter of the delivery pipeline, the first connecting piece 44 and the second connecting piece 45 of appropriate size are selected, the flushing pipe 42 is connected to one end of the delivery pipeline through the first connecting piece 44, and the return pipe 43 is connected to the other end of the delivery pipeline through the second connecting piece 45. The fresh water in the fresh water tank 3 is pumped into the delivery pipeline at high pressure through the flushing pump 41. After the salt in the delivery pipeline is dissolved by the fresh water, the flushing water with dissolved salt is transported to the filter 1 through the return pipe 43 for precipitation and filtration, and then enters the purifier 2 for purification to obtain fresh water, and the fresh water enters the fresh water tank 3 for storage.

[0058] The utility model provides a detachable connection between the first connector 44 and the flushing pipe 42, and a detachable connection between the second connector 45 and the return pipe 43. The first connector 44 and the second connector 45 of appropriate sizes can be selected according to the diameter of the delivery pipe. The flushing pipe 42 is quickly connected to one end of the delivery pipe through the first connector 44, and the return pipe 43 is quickly connected to the other end of the delivery pipe through the second connector 45, thereby improving the efficiency of cleaning salt deposits in the delivery pipe. A filter 1 is provided to precipitate and filter the flushing water, and a purifier 2 purifies the flushing water treated by the filter 1 to obtain fresh water. The flushing water can be reused, thereby preventing environmental pollution and conserving fresh water resources.

[0059] It should be noted that the above embodiments are intended to illustrate the present invention rather than to limit the present invention.

Claims

1. Pipeline dredging equipment, characterized in that, It includes a filter (1), a purifier (2), a fresh water tank (3) and a flushing device (4), The filter (1) is used to precipitate and filter the flushing water; The purifier (2) is connected to the filter (1) and is used to purify the flushing water treated by the filter (1) to obtain fresh water; The fresh water tank (3) is in communication with the purifier (2) and is used to store the fresh water produced by the purifier (2); The flushing device (4) includes a flushing pump (41), a flushing pipe (42) and a return pipe (43). The inlet of the flushing pump (41) is in communication with the fresh water tank (3); One end of the flushing pipe (42) is connected to the outlet of the flushing pump (41), and the other end is provided with a first connecting piece (44) for connecting to the delivery pipeline; The first connecting member (44) and the flushing pipe (42) are detachably connected; One end of the return pipe (43) is in communication with the filter (1), and the other end is provided with a second connector (45) for connecting to a delivery pipe; The second connecting piece (45) and the return pipe (43) are detachably connected.

2. The pipeline dredging equipment according to claim 1, characterized in that: The first connecting member (44) comprises a connecting cylinder (441), The connecting cylinder (441) is a conical cylinder, one end of which is provided with a first flange (442) for connecting to the flushing pipe (42), and the other end of which is provided with a second flange (443) for connecting to the delivery pipe; The second connecting member (45) and the first connecting member (44) have the same structure.

3. The pipeline dredging equipment according to claim 2, characterized in that: The purifier (2) comprises a tank (11), a sedimentation cylinder (12) and a filter plate (13). The top of the tank body (11) is provided with a liquid inlet (111) and a drug addition port (113), and the bottom of the tank body (11) is provided with a liquid outlet (114) and a slag discharge port (115), forming a processing chamber inside. The sedimentation cylinder (12) is a cylinder, which is vertically arranged in the processing chamber, has an open upper end, a closed lower end, and a discharge pipe (14) fixedly arranged at the bottom; One end of the discharge pipe (14) is connected to the bottom of the sedimentation cylinder (12), and the other end is connected to the slag discharge port (115); The filter plate (13) is annular and fixedly arranged in the processing chamber. The inner ring of the filter plate (13) is fixedly connected to the upper end of the sedimentation cylinder (12), and the outer ring of the filter plate (13) is fixedly connected to the inner side wall of the shell (21).

4. The pipeline dredging equipment according to claim 3, characterized in that: The purifier (2) further includes a scraping device (5), The scraping device (5) comprises a scraping motor (51), a scraping rod (52), a scraping plate (53) and a brush (54). The scraping motor (51) is fixedly arranged on the top of the tank body (11); The scraping rod (52) is arranged vertically, with the upper end fixedly connected to the rotating shaft of the scraping motor (51), and the lower end extending through the tank body (11) to the upper end of the sedimentation cylinder (12); The scraping plate (53) is arranged above the filter plate (13) and is parallel to the filter plate (13), with one end fixedly connected to the scraping rod (52) and the other end extending close to the inner wall of the tank body (11); The brush (54) is fixedly arranged on the scraping plate (53), and the lower end of the brush (54) is in contact with the top surface of the filter plate (13).

5. The pipeline dredging equipment according to claim 4, characterized in that: The purifier (2) is provided with a liquid inlet pipe (15) and a drug inlet pipe (16). The liquid inlet pipe (15) is fixedly arranged in the processing chamber, one end of which is connected to the liquid inlet (111) and the other end of which extends above the sedimentation cylinder (12). A drug inlet (152) is provided on the side wall of the liquid inlet pipe (15); The drug inlet (16) is connected to the drug adding port (113) and the drug inlet (152).

6. The pipeline dredging equipment according to claim 5, characterized in that: A baffle (151) is provided in the liquid inlet pipe (15). The baffle (151) is located below the medicine inlet (152).

7. The pipeline dredging equipment according to claim 6, characterized in that: The purifier (2) comprises a housing (21), a heating coil (22) and a heat exchange device (23). The shell (21) is provided with a purification inlet (211) and a purification outlet (212), and the interior is divided into an evaporation chamber (213) located at the lower part of the shell (21) and a condensation chamber (214) located at the upper part of the shell (21) by a partition plate (24), and a discharge port (215) is provided on the bottom plate of the shell (21); The partition plate (24) is conical, with the tip of the partition plate (24) facing upward and a steam outlet (216) provided at the tip; The purification inlet (211) is in communication with the upper portion of the evaporation chamber (213); The purification outlet (212) is in communication with the lower portion of the condensation chamber (214); The heating coil (22) is arranged in the evaporation chamber (213); The heat exchange device (23) is arranged in the condensation chamber (214).

8. The pipeline dredging equipment according to claim 7, characterized in that: A flow meter (112) is provided on the liquid inlet (111).

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