A domestic waste incineration slag circulating water washing treatment device

Abstract

The utility model relates to garbage treatment technical field, concretely is a kind of domestic waste incineration slag circulating water washing treatment device, including bottom plate, be located on the upper side of bottom plate's slag cleaning mechanism, be located on the upper side of bottom plate and with the drainage port intercommunication of slag cleaning mechanism circulating water treatment mechanism, be located in the inside of slag cleaning mechanism and with the intercommunication of circulating water treatment mechanism high pressure flushing mechanism, the circulating water treatment mechanism is located below the slag cleaning mechanism;Still including the support frame being located on the upper side of bottom plate, the dry type pre dedusting device being located on the upper side of support frame, the dry type pre dedusting device is located in one side of slag cleaning mechanism, and its discharge port extends to the inside of slag cleaning mechanism and is located in one side of high pressure flushing mechanism;The device is pre-treated before slag cleaning, removes surface dust, reduces subsequent washing impurities, both reduces cleaning load, and reduces wastewater pollutant concentration, relieves circulating water treatment pressure.

Description

Technical Field

[0001] This utility model relates to the field of waste treatment technology, specifically to a device for circulating water washing treatment of municipal solid waste incinerator slag. Background Technology

[0002] With social development and the improvement of people's living standards, the types of household waste are becoming increasingly complex, and the quantity is also increasing dramatically. Due to the complex composition of this type of waste, unified recycling is extremely difficult, and the current mainstream treatment method is still incineration. However, during the incineration of household waste, inorganic residues such as slag are generated. Because these slags contain various heavy metals such as iron, copper, zinc, and chromium, they have considerable recycling value, so the industry often uses water washing to sort and process them.

[0003] Existing municipal solid waste incineration slag recycling and washing systems typically send the slag directly into the washing unit for washing. However, when slag enters the washing process without pretreatment, a large amount of dust it carries (such as unburned carbon particles and fine ash) is directly mixed into the washing water. This increases the washing load on the unit, requiring more water and longer rinsing time to separate the dust from the slag, thus reducing washing efficiency. Secondly, it leads to a significant increase in the suspended solids concentration in the washing wastewater. High-concentration dust-laden wastewater entering the circulating water treatment process accelerates the deterioration of the circulating water quality, affecting the subsequent slag washing effect and requiring frequent filter media replacement due to clogging, thus increasing water consumption. Utility Model Content

[0004] The purpose of this invention is to provide a circulating water washing treatment device for municipal solid waste incineration slag, which solves the problem that existing slag circulating water washing devices directly wash the slag, resulting in untreated dust being mixed into the water, which increases the washing load, reduces efficiency, increases the concentration of suspended solids in the wastewater, accelerates the deterioration of the circulating water, affects the washing effect, and increases water consumption.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a circulating water washing treatment device for municipal solid waste incineration slag, comprising a base plate, a slag washing mechanism disposed on the upper side of the base plate, a circulating water treatment mechanism disposed on the upper side of the base plate and connected to the drainage port of the slag washing mechanism, and a high-pressure flushing mechanism disposed inside the slag washing mechanism and connected to the circulating water treatment mechanism, wherein the circulating water treatment mechanism is located below the slag washing mechanism; it also includes a support frame disposed on the upper side of the base plate and a dry pre-dust removal device disposed on the upper side of the support frame, wherein the dry pre-dust removal device is located on one side of the slag washing mechanism, and its discharge port extends into the interior of the slag washing mechanism and is located on one side of the high-pressure flushing mechanism.

[0006] Furthermore, the dry pre-dust removal device includes multiple springs evenly arranged on the upper side of the support frame, a dust pretreatment box located at the upper end of the multiple springs, a vibrating motor located in the middle of the lower side of the dust pretreatment box, a feed hopper connected to one end of the upper side of the dust pretreatment box, a discharge port connected to the other end of the lower side of the dust pretreatment box, an inclined perforated plate located at one end of the interior of the dust pretreatment box and connected to both sides of the interior, a blowing unit located inside the dust pretreatment box and below the inclined perforated plate, and a dust suction unit connected to the upper side of the dust pretreatment box.

[0007] Furthermore, the dust collection unit includes a dust collection box connected to the tail end of the dust pretreatment box, multiple dust filters arranged horizontally at intervals inside the dust collection box, a negative pressure fan connected to one end of the dust collection box, a dust discharge pipe connected to the upper side of the dust collection box and located on one side of the multiple dust filters, and multiple dust inlet pipes connected to the outer wall of the dust discharge pipe and arranged at intervals; one end of the dust discharge pipe and the multiple dust inlet pipes are all connected to the upper side of the dust pretreatment box.

[0008] Furthermore, the blowing unit includes two support components arranged at intervals on the lower side inside the dust pretreatment box, a blower located at the front end of the dust pretreatment box, an air inlet pipe connected to the air outlet of the blower and located inside the dust pretreatment box, a transverse air duct connected to one end of the air inlet pipe and connected to both sides inside the dust pretreatment box, multiple inclined branch pipes connected to the transverse air duct and arranged at horizontal intervals, and multiple blowing pipes connected to the upper side of the inclined branch pipes and arranged at intervals; both support components are connected to the multiple inclined branch pipes; the air outlet of the blowing pipe is flat, and the air outlet of the blowing pipe faces the lower surface of the inclined perforated plate.

[0009] Furthermore, the support assembly includes two support rods arranged at intervals on the lower side inside the dust pretreatment box, a fixed seat connected to the upper end of the two support rods, a plurality of circular through holes arranged at intervals on one side of the fixed seat, and a set screw threaded to the upper side of the fixed seat and extending into the circular through holes; the inclined branch pipe passes through the circular through holes, and the outer wall of the inclined branch pipe is clearance-fitted with the inner wall of the circular through holes; one end of the set screw is pressed against the outer wall of the inclined branch pipe.

[0010] Furthermore, the slag cleaning mechanism includes four support legs evenly distributed on the upper side of the base plate, a cleaning trough located on the upper end of the four support legs with a conical bottom, an opening on one side of the cleaning trough, a guide trough located at one end of the cleaning trough and corresponding to the opening, a stainless steel mesh belt conveyor located inside the cleaning trough, a drain pipe connected to the lower side of the cleaning trough, two motors spaced apart on one side of the cleaning trough, two rotating shafts spaced apart and rotatably connected to both sides of the interior of the cleaning trough via bearings, and two tilting plates located on the outer wall of the rotating shafts and inside the cleaning trough; the tilting plates are located above the stainless steel mesh belt conveyor; one end of the rotating shaft is connected to the output end of the corresponding motor; one end of the stainless steel mesh belt conveyor passes through the opening and extends into the interior of the guide trough; one end of the discharge port extends into the interior of the cleaning trough.

[0011] Furthermore, the circulating water treatment mechanism includes a circulating water tank located on the upper side of the base plate and between the four support legs, and multiple filter plates arranged longitudinally at intervals inside the circulating water tank; one end of the drain pipe is connected to the upper side of the circulating water tank.

[0012] Furthermore, the cleaning tank has fixed plates connected to both sides of the interior, located above the stainless steel mesh belt conveyor; the high-pressure rinsing mechanism includes a water delivery pipe connected to one side of the circulating water tank, a high-pressure water pump installed on the water delivery pipe section, multiple branch water pipes connected to the horizontal section of the water delivery pipe and spaced apart, a spray pipe connected to the lower end of the branch water pipe, and multiple nozzles connected to the lower side of the spray pipe and arranged in an array along the length of the spray pipe; the spray direction of the nozzles is perpendicular to the movement direction of the stainless steel mesh belt conveyor; both ends of the multiple spray pipes are connected to one side of the fixed plate and one end of the interior of the cleaning tank.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes the synergy of a dry pre-dust removal device, a slag cleaning mechanism, a circulating water treatment mechanism, and a high-pressure flushing mechanism. During the slag washing process, before the slag enters the cleaning stage, the dry pre-dust removal device first uses a combination of vibration dispersion, wind-driven dust raising, and negative pressure dust suction to peel off and remove dust adhering to the slag surface, reducing the total amount of impurities in the subsequent washing process. This pre-treatment stage not only reduces the workload of the slag cleaning mechanism but also lowers the pollutant concentration in the cleaning wastewater, reducing the pressure on the circulating water treatment mechanism for wastewater purification. Attached Figure Description

[0014] Figure 1 This is a cross-sectional schematic diagram of the municipal solid waste incinerator slag circulating water washing treatment device of this utility model; Figure 2 This is a side view of the circulating water tank of this utility model; Figure 3This is a partial top view of the blower unit of this utility model; Figure 4 This is a cross-sectional schematic diagram of the fixing base of this utility model.

[0015] In the diagram: 1. Base plate; 2. Cleaning water tank; 3. Support leg; 4. Guide chute; 5. Stainless steel mesh belt conveyor; 6. Drain pipe; 7. Circulating water tank; 8. Filter plate; 9. Conveying water pipe; 10. High-pressure water pump; 11. Branch water pipe; 12. Spray pipe; 13. Spray head; 14. Fixing plate; 15. Support frame; 16. Spring; 17. Vibrating motor; 18. Dust pretreatment box; 19. Inclined perforated plate; 20. Feed hopper; 21. Discharge port; 22. Blower; 23. Air inlet pipe; 24. Horizontal air duct; 25. Inclined branch pipe; 26. Blower pipe; 27. Fixing seat; 28. Support rod; 29. ​​Circular through hole; 30. Top screw; 31. Dust discharge pipe; 32. Dust inlet pipe; 33. Dust collection box; 34. Dust filter screen; 35. Negative pressure fan; 36. Rotating shaft; 37. Tilting plate. Detailed Implementation

[0016] Please see Figure 1-4 A municipal solid waste incinerator slag circulating water washing treatment device includes a base plate 1, a slag washing mechanism disposed on the upper side of the base plate 1, a circulating water treatment mechanism disposed on the upper side of the base plate 1 and connected to the drainage port of the slag washing mechanism, and a high-pressure flushing mechanism disposed inside the slag washing mechanism and connected to the circulating water treatment mechanism. The circulating water treatment mechanism is located below the slag washing mechanism. It also includes a support frame 15 disposed on the upper side of the base plate 1 and a dry pre-dust removal device disposed on the upper side of the support frame 15. The dry pre-dust removal device is located on one side of the slag washing mechanism, and its discharge port extends into the interior of the slag washing mechanism and is located on one side of the high-pressure flushing mechanism.

[0017] The dry pre-dust removal device includes multiple springs 16 connected to the upper side of the support frame 15 and evenly distributed, a dust pretreatment box 18 connected to the upper end of the multiple springs 16, a vibration motor 17 installed in the middle of the lower side of the dust pretreatment box 18, a feed hopper 20 connected to one end of the upper side of the dust pretreatment box 18, a discharge port 21 connected to the other end of the lower side of the dust pretreatment box 18, an inclined perforated plate 19 fixedly connected to one end of the interior of the dust pretreatment box 18 and connected to both sides of the interior, a blowing unit located inside the dust pretreatment box 18 and below the inclined perforated plate 19, and a dust suction unit connected to the upper side of the dust pretreatment box 18. The aperture of the inclined perforated plate 19 should be no smaller than the smallest particle size in the slag that is not easily sucked in by the dust collection unit, thus preventing the slag from falling downwards through the mesh. Simultaneously, the aperture must be smaller than the mainstream particle size of the slag (e.g., for slag with a particle size of 5-20mm, the mesh aperture can be set to 8-12mm) to ensure stable slag transport on the inclined perforated plate. Only dust is allowed to pass through the mesh, be lifted by the lower blowing unit, and be captured by the upper dust collection unit, thus preventing slag leakage and ensuring efficient dust separation. The vibrating motor 17, in conjunction with the spring 16, causes the pretreatment box to vibrate, continuously turning and moving the slag on the inclined perforated plate 19 downwards, preventing accumulation and blockage.

[0018] The dust collection unit includes a dust collection box 33 connected to the tail end of the dust pretreatment box 18, multiple dust filters 34 horizontally spaced and installed inside the dust collection box 33, a negative pressure fan 35 connected to one end of the dust collection box 33, a dust discharge pipe 31 connected to the upper side of the dust collection box 33 and located on one side of the multiple dust filters 34, and multiple dust inlet pipes 32 connected to the outer wall of the dust discharge pipe 31 and spaced apart; the negative pressure fan 35 is installed at one end of the dust collection box 33, and the air inlet of the negative pressure fan 35 extends through and into the interior of the dust collection box 33; one end of the dust discharge pipe 31 and the multiple dust inlet pipes 32 are all connected to the upper side of the dust pretreatment box 18. When the negative pressure fan 35 is working, it creates negative pressure in the dust collection box 33 and the dust pretreatment box 18. Through the dust discharge pipe 31 and multiple spaced dust inlet pipes 32, it can fully cover the upper area of ​​the dust pretreatment box 18 and suck the blown dust into the dust collection box 33. The multiple dust filter screens 34 in the dust collection box 33 can perform multi-layer filtration of the dust-laden airflow, intercepting dust and preventing it from being discharged with the airflow, thus realizing the centralized collection of dust.

[0019] The blowing unit includes two support components arranged at intervals on the lower side of the dust pretreatment box 18, a blower 22 located at the head end of the dust pretreatment box 18, an air inlet pipe 23 connected to the air outlet of the blower 22 and located inside the dust pretreatment box 18, a horizontal air duct 24 connected to one end of the air inlet pipe 23 and connected to both sides of the dust pretreatment box 18, multiple inclined branch pipes 25 connected to the horizontal air duct 24 and arranged at intervals on the horizontal side, and multiple blowing pipes 26 connected to the upper side of the inclined branch pipes 25 and arranged at intervals; both support components are connected to multiple inclined branch pipes 25; the air outlet of the blowing pipe 26 is flat and the air outlet of the blowing pipe 26 faces the lower surface of the inclined perforated plate 19. The flat air outlet of the blower pipe 26 can disperse the airflow to form a wide air curtain. Combined with the angle towards the lower surface of the inclined perforated plate 19, it can blow the slag on the perforated plate and raise the attached dust. Multiple horizontally spaced inclined branch pipes 25 cooperate with the blower pipe 26 to expand the air blowing coverage and ensure that the slag is fully exposed to the air during the movement.

[0020] The support assembly includes two support rods 28 fixedly connected to the lower side of the dust pretreatment box 18 and spaced apart, a fixing seat 27 connected to the upper end of the two support rods 28, a plurality of circular through holes 29 opened on one side of the fixing seat 27 and spaced apart, and a set screw 30 threaded to the upper side of the fixing seat 27 and extending into the circular through holes 29; an inclined branch pipe 25 passes through the circular through holes 29, and the outer wall of the inclined branch pipe 25 is clearance-fitted with the inner wall of the circular through hole 29; one end of the set screw 30 is pressed against the outer wall of the inclined branch pipe 25. The support rods 28 provide stable support for the fixing seat 27; the clearance fit between the circular through holes 29 and the inclined branch pipe 25, and the tightening and fixing by the set screw 30, realize the disassembly, assembly and positioning of the inclined branch pipe 25.

[0021] The slag cleaning mechanism includes four support legs 3 evenly distributed on the upper side of the base plate 1, a cleaning water tank 2 located on the upper end of the four support legs 3 with a conical bottom, an opening on one side of the cleaning water tank 2, a guide chute 4 located at one end of the cleaning water tank 2 and corresponding to the opening, a stainless steel mesh belt conveyor 5 located inside the cleaning water tank 2, a drain pipe 6 connected to the lower side of the cleaning water tank 2, two motors installed on one side of the cleaning water tank 2 and spaced apart, two rotating shafts 36 rotatably connected to both sides of the inside of the cleaning water tank 2 via bearings and spaced apart, and two flipping plates 37 connected to the outer wall of the rotating shafts 36 and located inside the cleaning water tank 2; the flipping plates 37 are located above the stainless steel mesh belt conveyor 5; one end of the rotating shaft 36 is connected to the output end of the corresponding motor; one end of the stainless steel mesh belt conveyor 5 passes through the opening and extends into the interior of the guide chute 4; one end of the discharge port 21 extends into the interior of the cleaning water tank 2.

[0022] The motor drives the flipping plate 37 to periodically flip the conveyed slag, which can gradually separate the stacked slag, exposing the previously covered slag surface, making it easier for the nozzle 13 of the high-pressure washing mechanism to wash the slag and improve the cleanliness. At the same time, the flipping process can break up the clumps of slag, preventing the internal dust or impurities from being difficult to wash away due to slag clumping. In addition, the interval setting of the flipping plate 37 can be matched with the conveying rhythm of the stainless steel mesh belt conveyor 5. Without affecting the slag conveying efficiency, the mechanical flipping can enhance the cleaning effect and reduce the water washing time.

[0023] The conical bucket design at the bottom of the cleaning tank 2 facilitates the collection of cleaning wastewater to the bottom and its discharge through the drain pipe 6, preventing water accumulation. The stainless steel mesh belt conveyor 5 passes through the opening and extends to the guide chute 4, realizing continuous conveying of slag from cleaning to discharge, reducing manual transfer links and improving processing efficiency.

[0024] The circulating water treatment mechanism includes a circulating water tank 7 fixedly connected to the upper side of the base plate 1 and located between four support legs 3, and multiple filter plates 8 longitudinally spaced inside the circulating water tank 7; the uppermost filter plate 8 is a stainless steel perforated plate, the middle layer is an activated carbon adsorption layer, and the lower layer is a PP precision filter element; one end of the drain pipe 6 is connected to the upper side of the circulating water tank 7. The upper stainless steel perforated plate can filter coarse slag particles in the cleaning wastewater, the middle activated carbon adsorption layer can adsorb organic matter, odors, and some heavy metals in the water, and the lower PP precision filter element further filters fine suspended solids and colloids; the connection design between the drain pipe 6 and the circulating water tank 7 allows the cleaning wastewater to be reused for high-pressure rinsing after multi-layer filtration, realizing the recycling of water resources.

[0025] The cleaning tank 2 has fixed plates 14 on both sides inside, which are located above the stainless steel mesh belt conveyor 5. The high-pressure rinsing mechanism includes a water delivery pipe 9 connected to one side of the circulating water tank 7, a high-pressure water pump 10 installed on the pipe section of the water delivery pipe 9, multiple branch water pipes 11 connected to the horizontal section of the water delivery pipe 9 and arranged at intervals, a spray pipe 12 connected to the lower end of the branch water pipe 11, and multiple nozzles 13 connected to the lower side of the spray pipe 12 and arranged in an array along the length of the spray pipe 12. The spray direction of the nozzles 13 is perpendicular to the movement direction of the stainless steel mesh belt conveyor 5. The two ends of the multiple spray pipes 12 are connected to one side of the fixed plate 14 and one end inside the cleaning tank 2. The stable support of the fixed plate 14 ensures that the spray pipe 12 and the nozzle 13 do not shake under the impact of high-pressure water flow; the multiple branch water pipes 11 arranged at intervals cooperate with the spray pipe 12 so that the nozzle 13 can fully cover the slag on the stainless steel mesh belt conveyor 5, forming a multi-angle rinsing of the moving slag and enhancing the peeling effect of impurities attached to the slag surface.

[0026] A PLC controller is installed on one side of the cleaning tank 2, which is electrically connected to the negative pressure fan 35, the blower 22, the high-pressure water pump 10, the vibrating motor 17, and the stainless steel mesh belt conveyor 5.

[0027] Working process and principle: The PLC controller starts the coordinated operation of various components. The slag from the municipal solid waste incineration furnace to be processed enters the dust pretreatment box 18 through the feed hopper 20. The vibration motor 17, in conjunction with the spring 16, causes the dust pretreatment box 18 to vibrate. The slag moves downward on the inclined perforated plate 19 with the vibration. At the same time, the blower 22 generates airflow, which is blown towards the lower surface of the inclined perforated plate 19 through the air inlet pipe 23, the horizontal air pipe 24, the inclined branch pipe 25, and the flat blower pipe 26, blowing up the dust mixed in with the slag. The negative pressure fan 35 creates negative pressure in the dust collection box 33 and the dust pretreatment box 18. The raised dust enters the dust collection box 33 through the dust inlet pipe 32 and the dust outlet pipe 31, where it is intercepted and collected by multiple dust filters 34. The slag that has completed the pre-dust removal falls into the washing water tank 2 through the discharge port 21. The slag falls onto the stainless steel mesh belt conveyor 5 and moves with it. The flipping plate 37 periodically flips the conveyed slag, which can gradually separate the stacked slag layers, exposing the previously covered slag surface. Under the action of the high-pressure water pump 10, the water in the circulating water tank 7 is sprayed from the nozzle 13 perpendicular to the movement direction of the stainless steel filter conveyor belt 5 through the conveying water pipe 9, branch water pipe 11, and spray pipe 12, to perform high-pressure washing of the slag. The washing wastewater falls into the bottom of the washing water tank 2 through the mesh of the stainless steel mesh conveyor belt 5, and is discharged into the circulating water tank 7 through the drain pipe 6. After passing through the uppermost stainless steel perforated plate to filter large particles of impurities, the middle activated carbon adsorption layer to remove organic matter and odors, and the lower PP precision filter element to filter fine particles, the purified water is reused for high-pressure washing. The washed slag is discharged after passing through the opening of the stainless steel mesh conveyor belt 5 into the guide trough 4, completing the entire slag circulating water washing process.

[0028] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A municipal solid waste incinerator slag circulating water washing treatment device, comprising a base plate (1), a slag washing mechanism disposed on the upper side of the base plate (1), a circulating water treatment mechanism disposed on the upper side of the base plate (1) and connected to the drainage port of the slag washing mechanism, and a high-pressure flushing mechanism disposed inside the slag washing mechanism and connected to the circulating water treatment mechanism, wherein the circulating water treatment mechanism is located below the slag washing mechanism; characterized in that, It also includes a support frame (15) on the upper side of the base plate (1) and a dry pre-dust removal device on the upper side of the support frame (15). The dry pre-dust removal device is located on one side of the slag cleaning mechanism, and its discharge port extends into the interior of the slag cleaning mechanism and is located on one side of the high-pressure flushing mechanism.

2. The circulating water washing treatment device according to claim 1, characterized in that, The dry pre-dust removal device includes multiple springs (16) evenly arranged on the upper side of the support frame (15), a dust pretreatment box (18) located on the upper end of the multiple springs (16), a vibration motor (17) located in the middle of the lower side of the dust pretreatment box (18), a feed hopper (20) connected to one end of the upper side of the dust pretreatment box (18), a discharge port (21) connected to the other end of the lower side of the dust pretreatment box (18), an inclined perforated plate (19) located at one end of the interior of the dust pretreatment box (18) and connected to both sides of the interior, a blowing unit located inside the dust pretreatment box (18) and below the inclined perforated plate (19), and a dust suction unit connected to the upper side of the dust pretreatment box (18).

3. The circulating water washing treatment device according to claim 2, characterized in that, The dust collection unit includes a dust collection box (33) connected to the tail end of the dust pretreatment box (18), multiple dust filters (34) arranged horizontally at intervals inside the dust collection box (33), a negative pressure fan (35) connected to one end of the dust collection box (33), a dust discharge pipe (31) connected to the upper side of the dust collection box (33) and located on one side of the multiple dust filters (34), and multiple dust inlet pipes (32) connected to the outer wall of the dust discharge pipe (31) and arranged at intervals; one end of the dust discharge pipe (31) and the multiple dust inlet pipes (32) are all connected to the upper side of the dust pretreatment box (18).

4. The circulating water washing treatment device according to claim 2, characterized in that, The blowing unit includes two support components arranged at intervals on the lower side inside the dust pretreatment box (18), a blower (22) located at the head end of the dust pretreatment box (18), an air inlet pipe (23) connected to the air outlet of the blower (22) and located inside the dust pretreatment box (18), a horizontal air pipe (24) connected to one end of the air inlet pipe (23) and connected to both sides inside the dust pretreatment box (18), a plurality of inclined branch pipes (25) connected to the horizontal air pipe (24) and arranged at intervals, and a plurality of blowing pipes (26) connected to the upper side of the inclined branch pipes (25) and arranged at intervals; both support components are connected to the plurality of inclined branch pipes (25); the air outlet of the blowing pipe (26) is flat, and the air outlet of the blowing pipe (26) faces the lower surface of the inclined perforated plate (19).

5. The circulating water washing treatment device according to claim 4, characterized in that, The support assembly includes two support rods (28) arranged at intervals on the lower side inside the dust pretreatment box (18), a fixed seat (27) connected to the upper end of the two support rods (28), a plurality of circular through holes (29) arranged at intervals on one side of the fixed seat (27), and a set screw (30) threaded to the upper side of the fixed seat (27) and extending into the circular through holes (29); the inclined branch pipe (25) passes through the circular through holes (29), and the outer wall of the inclined branch pipe (25) is clearance-fitted with the inner wall of the circular through holes (29); one end of the set screw (30) is pressed against the outer wall of the inclined branch pipe (25).

6. The circulating water washing treatment device according to claim 2, characterized in that, The slag cleaning mechanism includes four support legs (3) evenly arranged on the upper side of the base plate (1), a cleaning water tank (2) located on the upper end of the four support legs (3) and with a conical bottom, an opening on one side of the cleaning water tank (2), a guide chute (4) located at one end of the cleaning water tank (2) and corresponding to the opening, a stainless steel mesh belt conveyor (5) located inside the cleaning water tank (2), a drain pipe (6) connected to the lower side of the cleaning water tank (2), two motors arranged at intervals on one side of the cleaning water tank (2), and a cleaning... The inner sides of the water tank (2) are connected by bearings and arranged at intervals. Two rotating shafts (36) are arranged on the outer wall of the rotating shafts (36) and inside the cleaning water tank (2). The rotating shafts (37) are located above the stainless steel mesh belt conveyor (5). One end of the rotating shaft (36) is connected to the output end of the corresponding motor. One end of the stainless steel mesh belt conveyor (5) passes through the opening and extends into the interior of the guide trough (4). One end of the discharge port (21) extends into the interior of the cleaning water tank (2).

7. The circulating water washing treatment device according to claim 6, characterized in that, The circulating water treatment mechanism includes a circulating water tank (7) located on the upper side of the base plate (1) and between the four support legs (3), and multiple filter plates (8) arranged longitudinally at intervals inside the circulating water tank (7); one end of the drain pipe (6) is connected to the upper side of the circulating water tank (7).

8. The circulating water washing treatment device according to claim 7, characterized in that, The cleaning tank (2) has a fixed plate (14) on both sides connected to the stainless steel mesh belt conveyor (5); the high-pressure rinsing mechanism includes a water delivery pipe (9) connected to one side of the circulating water tank (7), a high-pressure water pump (10) installed on the section of the water delivery pipe (9), multiple branch water pipes (11) connected to the horizontal section of the water delivery pipe (9) and arranged at intervals, a spray pipe (12) connected to the lower end of the branch water pipe (11), and multiple nozzles (13) connected to the lower side of the spray pipe (12) and arranged in an array along the length of the spray pipe (12); the spraying direction of the nozzles (13) is perpendicular to the movement direction of the stainless steel mesh belt conveyor (5); the two ends of the multiple spray pipes (12) are connected to one side of the fixed plate (14) and one end of the interior of the cleaning tank (2).

Images