Sludge pretreatment device for sludge brickmaking

Abstract

The invention discloses a sludge pretreatment device for sludge brickmaking, which comprises a drying box, one side of the drying box is fixedly connected with a drying box, one side, far away from the drying box, of the drying box is fixedly connected with a feeding device, one side, close to the feeding device, of the interior of the drying box is fixedly connected with a crushing device, and the lower end of the interior of the drying box is fixedly connected with a stirring device. According to the scheme, sludge on the surface of the first filter cloth conveying belt is subjected to primary filter pressing through the second filter cloth conveying belt, sewage in the sludge passes through the first filter cloth conveying belt again, and along with conveying of the sludge, the sludge is extruded by the second filter cloth conveying belt and the first filter cloth conveying belt again, so that secondary filter pressing and graded drying of the sludge are realized; meanwhile, in the sludge dewatering process, transportation is carried out, the sludge dewatering efficiency is improved, automatic quantitative adding and mixing of mixed materials are achieved, independent cooperation with other equipment is not needed, space is saved, and multifunctional treatment of the sludge is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of sludge brick making, and more specifically to a sludge pre-treatment device for sludge brick making. Background Art

[0002] Sludge brick making is an environmentally friendly recycling method. It is a building material made by mixing sludge discharged from urban sewage treatment plants with other materials and sintering them. At present, many building materials use cultivated soil as raw materials, which seriously damages cultivated land, not only affecting the development of agriculture, but also destroying the ecological environment. The mineral composition of dredged mud in rivers and other places is basically similar to clay, so it can replace clay in the manufacture of building materials, which not only turns waste into treasure, but also eases the contradiction between the manufacture of building materials and the development of agriculture.

[0003] An important step in sludge treatment is dehydration. Dehydration refers to the removal of water from flowing primary, concentrated or digested sludge and converting it into semi-solid or solid mud blocks. Among them, mechanical dehydration often uses a centrifugal sludge dehydrator to dehydrate the sludge, but this centrifugal sludge dehydrator requires the sludge to enter the drum of the dehydrator for separation. The single dehydration efficiency is low, and after dehydration, the moisture content of the sludge is still not ideal, which affects the efficiency of brick making in the later stage. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a sludge pretreatment device for sludge brick making, which realizes secondary filtration and graded dehydration of the sludge, thereby improving the dehydration effect of the sludge. At the same time, during the sludge dehydration process, the sludge is transported to improve the dehydration efficiency of the sludge, and automatic quantitative addition and mixing of mixed materials are realized. There is no need to cooperate with other equipment separately, which saves space and realizes multifunctional treatment of sludge to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sludge pretreatment device for making sludge bricks, comprising a de-drying box, one side of the de-drying box is fixedly connected to a drying box, the side of the drying box away from the de-drying box is fixedly connected to a feeding device, the side of the drying box close to the feeding device is fixedly connected to a crushing device, and the lower end of the drying box is fixedly connected to a stirring device; the de-drying box comprises a box body, one end of the top of the box body is fixedly connected to a sludge feeding hopper, one side of the box body is fixedly connected to a transmission motor, and one side of the transmission motor is provided with a driving roller The driving roller is rotatably installed inside the box, and a support frame is fixedly connected to the side of the box away from the driving roller. A transmission roller is rotatably installed on the upper end of the support frame, and a filter cloth belt is sleeved on the outer surfaces of the driving roller and the transmission roller. A scraper is fixedly connected to the upper end of the box, and a first filter cloth conveyor belt is arranged at the lower end of the support frame. A first chain transmission member is arranged on one side of the transmission roller, and the transmission roller is connected to the first filter cloth conveyor belt through the first chain transmission member. A sewage trough is fixedly connected to the lower end of the box, and a sewage pipe is arranged on one side of the sewage trough.

[0006] In a preferred embodiment, the filter cloth belt is obliquely installed at the upper end of the interior of the box body, and a discharge pipe is fixedly connected to one side of the box body close to the drying box. A second filter cloth conveyor belt is arranged at the upper end of the discharge pipe and the upper end of the interior of the box body, and a filter press motor is arranged on the top of the discharge pipe, and a second chain transmission member is arranged on one side of the filter press motor, and the filter press motor is connected to the second filter cloth conveyor belt through the second chain transmission member.

[0007] In a preferred embodiment, one end of the second filter cloth conveyor belt is located on the top of the first filter cloth conveyor belt, and the other end of the second filter cloth conveyor belt is in contact with one end of the first filter cloth conveyor belt. A material guide plate is fixedly connected to one side of the bottom of the discharge pipe, and one end of the material guide plate is located on one side of the first filter cloth conveyor belt.

[0008] In a preferred embodiment, the drying box includes a fixed box, which is fixedly installed on one side of the box body close to the discharge pipe, a partition plate is fixedly connected to the upper end of the interior of the fixed box, a feed port is opened on one side of the top of the fixed box, the guide plate is located on one side of the feed port, a blower is fixedly connected to the top of the fixed box, and a heating box is fixedly connected to the side of the blower located at the top of the fixed box, a heating tube is arranged inside the heating box, and an air outlet is arranged at the top of the inner wall of the fixed box at the bottom of the heating box.

[0009] In a preferred embodiment, a third filter cloth conveyor belt is provided at the upper end inside the fixed box, the third filter cloth conveyor belt is in an inclined state, and the air outlet is flush with the third filter cloth conveyor belt, and the higher end of the third filter cloth conveyor belt is rotatably connected to one side of the top of the crushing device.

[0010] In a preferred embodiment, the crushing device includes a crushing frame, a crushing motor is provided on one side of the upper end of the crushing frame, a crushing roller is provided on one side of the crushing motor, the crushing roller is rotatably installed on the upper end of the crushing frame, a discharge port is opened on one side of the bottom of the crushing frame, a fixed cover is fixedly connected to one side of the bottom of the crushing frame, a first flip motor is provided on one side of the fixed cover, a first flip valve is provided inside the fixed cover, and a first weighing sensor is provided on the top of the first flip valve.

[0011] In a preferred embodiment, the crushing frame is fixedly installed on one side of the fixed box, the bottom of the fixed cover is fixedly connected to a joint pipe, the joint pipe is fixedly installed on one side of the fixed box, the bottom of the joint pipe is an inclined surface, one side of the joint pipe is fixedly connected to a mixing port, and the mixing port is located at the top of the feeding device.

[0012] In a preferred embodiment, the feeding device includes a storage box, the top of which is fixedly connected to a material feed hopper, the bottom of which is fixedly connected to a material guide pipe, the bottom of the storage box is an inclined surface, and one side of the bottom of the storage box is provided with a powder port connected to the material guide pipe, one side of the material guide pipe is fixedly connected to a support pipe, one side of the support pipe is provided with a second flip motor, one side of the second flip motor is provided with a second flip valve inside the support pipe, a second weighing sensor is provided on the top of the second flip valve, and a discharge valve is provided inside the material guide pipe.

[0013] In a preferred embodiment, the storage box is fixedly installed on one side of the drying box, and the support pipe is fixedly connected to one side of the top of the joint pipe.

[0014] In a preferred embodiment, the stirring device includes a stirring box fixedly installed at the lower end of the drying box, a stirring motor is provided on one side of the stirring box, a stirring roller rotatably installed inside the stirring box is provided on one side of the stirring motor, a discharge nozzle is fixedly connected to one side of the stirring roller, and a discharge valve is provided on one side of the discharge nozzle.

[0015] Technical effects and advantages of the present invention:

[0016] 1. In the present invention, sewage enters the interior of the sewage tank through the filter cloth belt for simple solid-water separation. When the sludge passes through one end of the second filter cloth conveyor belt, the sludge on the surface of the first filter cloth conveyor belt is subjected to the first filter pressing through the second filter cloth conveyor belt. The sewage in the sludge passes through the first filter cloth conveyor belt again. As the sludge is transmitted, when the sludge reaches the interior of the discharge pipe, the sludge is squeezed through the second filter cloth conveyor belt and the first filter cloth conveyor belt again to achieve secondary filter pressing of the sludge, graded dehydration, and improve the dehydration effect of the sludge. At the same time, during the dehydration process of the sludge, it is transported to improve the dehydration efficiency of the sludge.

[0017] 2. The present invention dries the sludge entering the surface of the third filter cloth conveyor belt by arranging a blower and a heating box, and adjusts the drying degree of the sludge by adjusting the transmission speed of the third filter cloth conveyor belt.

[0018] 3. The present invention provides a crushing roller. When the fallen sludge blocks pass through the crushing frame and enter the crushing roller, they are crushed by the crushing roller, so that the sludge is crushed, thereby facilitating the collection and treatment of the sludge and also facilitating the transportation of the sludge.

[0019] 4. The crushed sludge of the present invention is weighed by the first weighing sensor. When it reaches a certain weight, the first flip motor controls the first flip valve to open, so that the crushed sludge passes through the combined pipe and enters the interior of the mixing box from the mixing port. At this time, the discharge valve inside the guide pipe is opened, and the weight of the mixed material entering the support pipe from the storage box is detected by the second weighing sensor. When the required weight is reached, the mixed material inside the storage box is quantitatively discharged into the interior of the combined pipe through the support pipe, and then enters the interior of the mixing box, thereby realizing automatic quantitative addition and mixing of the mixed materials, without the need to cooperate with other equipment separately, saving space, and realizing multifunctional treatment of sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the back structure of the de-drying box of the present invention.

[0022] Figure 3 It is a schematic diagram of the internal structure of the dehydration box of the present invention.

[0023] Figure 4 It is a schematic diagram of the structure of location A of the present invention.

[0024] Figure 5 It is a schematic diagram of the drying box structure of the present invention.

[0025] Figure 6 It is a schematic diagram of the structure of the crushing device of the present invention.

[0026] Figure 7 It is a schematic structural diagram of the feeding device of the present invention.

[0027] Figure 8 It is a schematic diagram of the structure of the stirring device of the present invention.

[0028] The accompanying drawings are marked as follows: 1, de-drying box; 2, drying box; 3, feeding device; 4, crushing device; 5, stirring device; 11, box body; 12, sludge feeding hopper; 13, transmission motor; 14, sewage pipe; 15, first chain transmission member; 16, discharge pipe; 17, driving roller; 18, filter cloth belt; 19, sewage tank; 110, scraper; 111, support frame; 112, transmission roller; 113, first filter cloth conveyor belt; 114, second filter cloth conveyor belt; 115, filter press motor; 116, second chain transmission member; 117, guide plate; 21, fixed box; 22, partition plate; 23, feed port; 24, blower ; 25. Heating box; 26. Air outlet; 27. Third filter cloth conveyor belt; 31. Storage box; 32. Material feed hopper; 33. Powder material port; 34. Material guide pipe; 35. Support pipe; 36. Second flip motor; 37. Second flip valve; 38. Second weighing sensor; 41. Crushing frame; 42. Crushing motor; 43. Crushing roller; 44. Discharge port; 45. Fixed cover; 46. First flip motor; 47. First flip valve; 48. First weighing sensor; 49. Combined pipe; 410. Mixing port; 51. Stirring box; 52. Stirring motor; 53. Stirring roller; 54. Discharge nozzle; 55. Discharge valve. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] First embodiment

[0031] As attached Figure 1-4 In one embodiment of the present invention, the sludge and sewage are simply separated by the filter cloth belt 18, and then the sludge on the first filter cloth conveyor belt 113 is squeezed by one side of the second filter cloth conveyor belt 114 to achieve pressure filtration of the sludge, and then the sludge is further separated from the solid and water to achieve dehydration of the sludge.

[0032] A sludge pretreatment device for making sludge bricks, comprising a de-drying box 1, a drying box 2 is fixedly connected to one side of the de-drying box 1, a feeding device 3 is fixedly connected to the side of the drying box 2 away from the de-drying box 1, a crushing device 4 is fixedly connected to the side of the drying box 2 close to the feeding device 3, and a stirring device 5 is fixedly connected to the lower end of the drying box 2; the de-drying box 1 comprises a box body 11, one end of the top of the box body 11 is fixedly connected to a sludge feeding hopper 12, one side of the box body 11 is fixedly connected to a transmission motor 13, one side of the transmission motor 13 is provided with a driving roller 17, the driving roller 17 is rotatably installed inside the box body 11, and the box body 11 A support frame 111 is fixedly connected to the side away from the driving roller 17, and a transmission roller 112 is rotatably installed on the upper end of the support frame 111. The outer surfaces of the driving roller 17 and the transmission roller 112 are sleeved with a filter cloth belt 18. A scraper 110 is fixedly connected to the upper end of the box body 11, and a first filter cloth conveyor belt 113 is arranged at the lower end of the support frame 111. A first chain transmission member 15 is arranged on one side of the transmission roller 112, and the transmission roller 112 is connected to the first filter cloth conveyor belt 113 through the first chain transmission member 15. A sewage trough 19 is fixedly connected to the lower end of the box body 11, and a sewage pipe 14 is arranged on one side of the sewage trough 19.

[0033] When the sludge passes through the sludge feed hopper 12 and falls onto the surface of the filter cloth belt 18 , the scraper 110 is used to flatten the sludge. At the same time, the water is simply separated by the filter cloth belt 18 and is collected by the sewage tank 19 .

[0034] As attached Figure 3 As shown, the filter cloth belt 18 is obliquely installed at the upper end of the interior of the box body 11, and a discharge pipe 16 is fixedly connected to one side of the box body 11 close to the drying box 2. The upper end of the discharge pipe 16 and the upper end of the interior of the box body 11 are provided with a second filter cloth conveyor belt 114, and a filter press motor 115 is provided on the top of the discharge pipe 16. A second chain transmission member 116 is provided on one side of the filter press motor 115, and the filter press motor 115 is connected to the second filter cloth conveyor belt 114 through the second chain transmission member 116.

[0035] As attached Figure 4 As shown, one end of the second filter cloth conveyor belt 114 is located on the top of the first filter cloth conveyor belt 113, and the other end of the second filter cloth conveyor belt 114 is in contact with one end of the first filter cloth conveyor belt 113. A material guide plate 117 is fixedly connected to one side of the bottom of the discharge pipe 16, and one end of the material guide plate 117 is located on one side of the first filter cloth conveyor belt 113.

[0036] The second filter cloth conveyor belt 114 presses the first filter cloth conveyor belt 113, and the sludge falls onto the surface of the first filter cloth conveyor belt 113 through the filter cloth belt 18. The sludge is filtered through one end of the second filter cloth conveyor belt 114 to separate the sludge from the sewage. Subsequently, the sludge is discharged from the discharge pipe 16 and squeezed again by the second filter cloth conveyor belt 114 and one end of the first filter cloth conveyor belt 113 at the outlet end to form a sludge sheet. At this time, the sludge sheet adhering to the surface of the first filter cloth conveyor belt 113 is scraped off by the guide plate 117, so that the sludge passes through the guide plate 117 and enters the interior of the drying box 2.

[0037] Second embodiment

[0038] As attached Figure 1-5 This is an embodiment of the present invention. In order to further dry the sludge, on the basis of the first embodiment, a blower 24 and a heating box 25 are provided to dry the sludge entering the surface of the third filter cloth conveyor belt 27, and the degree of drying of the sludge is adjusted by adjusting the transmission speed of the third filter cloth conveyor belt 27.

[0039] The second embodiment is further optimized relative to the first embodiment in that the drying box 2 includes a fixed box 21, which is fixedly installed on a side of the box body 11 close to the discharge pipe 16, a partition plate 22 is fixedly connected to the upper end of the interior of the fixed box 21, a feed port 23 is opened on one side of the top of the fixed box 21, a guide plate 117 is located on one side of the feed port 23, a blower 24 is fixedly connected to the top of the fixed box 21, a heating box 25 is fixedly connected to the side of the blower 24 located at the top of the fixed box 21, a heating tube is arranged inside the heating box 25, and an air outlet 26 is arranged at the top of the inner wall of the fixed box 21.

[0040] Among them, a third filter cloth conveyor belt 27 is arranged at the upper end inside the fixed box 21, the third filter cloth conveyor belt 27 is in an inclined state, and the air outlet 26 is flush with the third filter cloth conveyor belt 27, and the higher end of the third filter cloth conveyor belt 27 is rotatably connected to one side of the top of the crushing device 4.

[0041] Third embodiment

[0042] As attached Figure 1-6 This is an embodiment of the present invention. On the basis of the second embodiment, since the dried sludge on the third filter cloth conveyor belt 27 passes through the crushing frame 41, most of the sludge blocks that fall down are sludge blocks, which are not convenient for collection and subsequent processing. By providing a crushing roller 43, when the fallen sludge blocks pass through the crushing frame 41 and enter the crushing roller 43, they are crushed by the crushing roller 43, thereby facilitating the collection and processing of the sludge, and also facilitating the transportation of the sludge.

[0043] The third embodiment is further optimized relative to the second embodiment in that the crushing device 4 comprises a crushing frame 41, a crushing motor 42 is provided on one side of the upper end of the crushing frame 41, a crushing roller 43 is provided on one side of the crushing motor 42, the crushing roller 43 is rotatably mounted on the upper end of the crushing frame 41, a discharge port 44 is provided on one side of the bottom of the crushing frame 41, a fixed cover 45 is fixedly connected to one side of the bottom of the crushing frame 41, a first flip motor 46 is provided on one side of the fixed cover 45, a first flip valve 47 is provided inside the fixed cover 45, and a first weighing sensor 48 is provided on the top of the first flip valve 47.

[0044] Among them, the crushing frame 41 is fixedly installed on one side of the fixed box 21, the bottom of the fixed cover 45 is fixedly connected with a joint pipe 49, the joint pipe 49 is fixedly installed on one side of the fixed box 21, the bottom of the joint pipe 49 is an inclined surface, and one side of the joint pipe 49 is fixedly connected with a mixing port 410, and the mixing port 410 is located at the top of the feeding device 3.

[0045] Fourth embodiment

[0046] As attached Figure 1-8 This is an embodiment of the present invention. On the basis of the third embodiment, by setting a feeding device 3 and a stirring device 5, automatic quantitative addition and mixing of mixed materials (such as concrete, fiber materials, etc.) can be achieved without the need to cooperate with other equipment separately, thus saving space and realizing multifunctional treatment of sludge.

[0047] As attached Figure 7 As shown, the feeding device 3 includes a storage box 31, a material feed hopper 32 is fixedly connected to the top of the storage box 31, a material guide pipe 34 is fixedly connected to the bottom of the storage box 31, the bottom of the storage box 31 is an inclined surface, and a powder port 33 connected to the material guide pipe 34 is opened on one side of the bottom of the storage box 31, a support pipe 35 is fixedly connected to one side of the material guide pipe 34, a second flip motor 36 is arranged on one side of the support pipe 35, a second flip valve 37 is arranged inside the support pipe 35 on one side of the second flip motor 36, a second weighing sensor 38 is arranged on the top of the second flip valve 37, and a discharge valve is arranged inside the material guide pipe 34.

[0048] The discharge valve inside the guide tube 34 is opened, and the weight of the mixed material entering the support tube 35 from the storage box 31 is detected through the second weighing sensor 38. When the required weight is reached, the second flip motor 36 controls the second flip valve 37 to open, so that the mixed material inside the storage box 31 is quantitatively discharged into the combined tube 49 through the support tube 35. At the same time, when the first weighing sensor 48 weighs the sludge inside the crushing frame 41, when the required weight is reached, the first flip motor 46 controls the first flip valve 47 to start, so that the quantitative sludge is discharged into the combined tube 49, thereby realizing the automatic addition of quantitative sludge and mixed materials.

[0049] The material storage box 31 is fixedly installed on one side of the drying box 2 , and the support pipe 35 is fixedly connected to one side of the top of the joint pipe 49 .

[0050] As attached Figure 8 As shown, the stirring device 5 includes a stirring box 51 fixedly installed at the lower end of the drying box 2, a stirring motor 52 is provided on one side of the stirring box 51, a stirring roller 53 rotatably installed inside the stirring box 51 is provided on one side of the stirring motor 52, a discharge nozzle 54 is fixedly connected to one side of the stirring roller 53, and a discharge valve 55 is provided on one side of the discharge nozzle 54.

[0051] The working principle of the present invention is as follows: when in use, the sludge passes through the sludge feed hopper 12 and enters the surface of the filter cloth belt 18. The filter cloth belt 18 is used to transfer the sludge on the surface through the driving roller 17, and the sludge is flattened through the scraper 110. At this time, the sewage passes through the filter cloth belt 18 and enters the interior of the sewage tank 19 for simple solid-water separation. Subsequently, the sludge passes through the filter cloth belt 18 and enters the surface of the first filter cloth conveyor belt 113. When the sludge passes through one end of the second filter cloth conveyor belt 114 through the first filter cloth conveyor belt 113, the sludge on the surface of the first filter cloth conveyor belt 113 is subjected to a first pressure filtration through the second filter cloth conveyor belt 114. The sewage in the sludge passes through the first filter cloth conveyor belt 113 again and is discharged into the interior of the sewage tank 19. As the sludge is transferred, when the sludge reaches the interior of the discharge pipe 16, the sludge passes through the second filter cloth conveyor belt 114 and the first filter cloth conveyor belt 113 again to achieve secondary pressure filtration of the sludge.

[0052] When the sludge squeezed into flakes passes through the guide plate 117, the guide plate 117 scrapes the sludge so that the sludge passes through the surface of the guide plate 117 and slides from the feed port 23 to the surface of the third filter cloth conveyor belt 27. At this time, the wind generated by the blower 24 passes through the heating box 25 and is discharged from the bottom of the air outlet 26 to air-dry the sludge on the surface of the third filter cloth conveyor belt 27.

[0053] The air-dried sludge is transported by the third filter cloth conveyor belt 27, falls into the crushing frame 41, and is crushed by the crushing roller 43 to achieve sludge crushing;

[0054] The crushed sludge is weighed by the first weighing sensor 48. When it reaches a certain weight, the first flip motor 46 controls the first flip valve 47 to open, so that the crushed sludge passes through the joint pipe 49 and enters the interior of the mixing box 51 from the mixing port 410. At this time, the discharge valve inside the guide pipe 34 is opened, and the weight of the mixed material entering the support pipe 35 from the storage box 31 is detected by the second weighing sensor 38. When the required weight is reached, the second flip motor 36 controls the second flip valve 37 to open, and the discharge valve is closed, so that the mixed material inside the storage box 31 is quantitatively discharged into the interior of the joint pipe 49 through the support pipe 35, and then enters the interior of the mixing box 51, and is fully stirred by the stirring roller 53. Finally, the discharge valve 55 is opened to discharge the sludge through the discharge nozzle 54.

[0055] Finally, a few points should be explained: the drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sludge pretreatment device for making sludge bricks, comprising a desiccant box (1), characterized in that: A drying box (2) is fixedly connected to one side of the de-drying box (1), a feeding device (3) is fixedly connected to the side of the drying box (2) away from the de-drying box (1), a crushing device (4) is fixedly connected to the side of the drying box (2) close to the feeding device (3), and a stirring device (5) is fixedly connected to the lower end of the drying box (2); The desiccant box (1) comprises a box body (11), one end of the top of the box body (11) is fixedly connected to a sludge feed hopper (12), one side of the box body (11) is fixedly connected to a transmission motor (13), one side of the transmission motor (13) is provided with a driving roller (17), the driving roller (17) is rotatably mounted inside the box body (11), a side of the box body (11) away from the driving roller (17) is fixedly connected to a support frame (111), the upper end of the support frame (111) is rotatably mounted with a transmission roller (112), the driving roller (17) and the transmission roller (17) are rotatably mounted on the inner side of the box body (11), and the transmission roller (112) is rotatably mounted on the upper side of the support frame (111). The outer surface of the housing (112) is sleeved with a filter cloth belt (18); the upper end of the interior of the housing (11) is fixedly connected to a scraper (110); the lower end of the support frame (111) is provided with a first filter cloth conveyor belt (113); a first chain transmission member (15) is provided on one side of the transmission roller (112); the transmission roller (112) is connected to the first filter cloth conveyor belt (113) via the first chain transmission member (15); the lower end of the interior of the housing (11) is fixedly connected to a sewage trough (19); a sewage pipe (14) is provided on one side of the sewage trough (19).

2. The sludge pretreatment device for making sludge bricks according to claim 1 is characterized by: The filter cloth belt (18) is obliquely installed at the upper end of the interior of the box body (11); a discharge pipe (16) is fixedly connected to a side of the box body (11) close to the drying box (2); a second filter cloth conveyor belt (114) is arranged at the upper end of the discharge pipe (16) and the upper end of the interior of the box body (11); a filter press motor (115) is arranged at the top of the discharge pipe (16); a second chain transmission member (116) is arranged on one side of the filter press motor (115); and the filter press motor (115) is connected to the second filter cloth conveyor belt (114) via the second chain transmission member (116).

3. The sludge pretreatment device for making sludge bricks according to claim 2 is characterized by: One end of the second filter cloth conveyor belt (114) is located on the top of the first filter cloth conveyor belt (113), and the other end of the second filter cloth conveyor belt (114) is in contact with one end of the first filter cloth conveyor belt (113); a material guide plate (117) is fixedly connected to one side of the bottom of the discharge pipe (16), and one end of the material guide plate (117) is located on one side of the first filter cloth conveyor belt (113).

4. The sludge pretreatment device for making sludge bricks according to claim 3 is characterized by: The drying box (2) comprises a fixed box (21), wherein the fixed box (21) is fixedly mounted on a side of the box body (11) close to the discharge pipe (16), a partition plate (22) is fixedly connected to the upper end of the fixed box (21), a feed port (23) is provided on one side of the top of the fixed box (21), the guide plate (117) is located on one side of the feed port (23), a blower (24) is fixedly connected to the top of the fixed box (21), a heating box (25) is fixedly connected to the side of the blower (24) located at the top of the fixed box (21), a heating tube is provided inside the heating box (25), and an air outlet (26) is provided at the bottom of the heating box (25) located at the top of the inner wall of the fixed box (21).

5. The sludge pretreatment device for making sludge bricks according to claim 4 is characterized by: A third filter cloth conveyor belt (27) is provided at the upper end inside the fixed box (21); the third filter cloth conveyor belt (27) is in an inclined state, and the air outlet (26) is flush with the third filter cloth conveyor belt (27); the higher end of the third filter cloth conveyor belt (27) is rotatably connected to one side of the top of the crushing device (4).

6. The sludge pretreatment device for making sludge bricks according to claim 1 is characterized by: The crushing device (4) comprises a crushing frame (41), a crushing motor (42) is arranged on one side of the upper end of the crushing frame (41), a crushing roller (43) is arranged on one side of the crushing motor (42), the crushing roller (43) is rotatably mounted on the upper end of the crushing frame (41), a discharge port (44) is opened on one side of the bottom of the crushing frame (41), a fixed cover (45) is fixedly connected to one side of the bottom of the crushing frame (41), a first turnover motor (46) is arranged on one side of the fixed cover (45), a first turnover valve (47) is arranged inside the fixed cover (45), and a first weighing sensor (48) is arranged on the top of the first turnover valve (47).

7. The sludge pretreatment device for making sludge bricks according to claim 6 is characterized by: The crushing frame (41) is fixedly mounted on one side of the fixed box (21); the bottom of the fixed cover (45) is fixedly connected to a joint pipe (49); the joint pipe (49) is fixedly mounted on one side of the fixed box (21); the bottom of the joint pipe (49) is an inclined surface; one side of the joint pipe (49) is fixedly connected to a mixing port (410); the mixing port (410) is located at the top of the feeding device (3).

8. The sludge pretreatment device for making sludge bricks according to claim 1 is characterized by: The feeding device (3) comprises a material storage box (31), the top of which is fixedly connected to a material feed hopper (32), the bottom of which is fixedly connected to a material guide pipe (34), the bottom of which is an inclined surface, and a powder material port (33) connected to the material guide pipe (34) is provided on one side of the bottom of the material storage box (31), a support pipe (35) is fixedly connected to one side of the material guide pipe (34), a second flip motor (36) is provided on one side of the support pipe (35), a second flip valve (37) is provided on one side of the second flip motor (36) and is located inside the support pipe (35), a second weighing sensor (38) is provided on the top of the second flip valve (37), and a discharge valve is provided inside the material guide pipe (34).

9. The sludge pretreatment device for making sludge bricks according to claim 8, characterized in that: The material storage box (31) is fixedly installed on one side of the drying box (2), and the support pipe (35) is fixedly connected to one side of the top of the joint pipe (49).

10. The sludge pretreatment device for making sludge bricks according to claim 1, characterized in that: The stirring device (5) comprises a stirring box (51) fixedly mounted at the lower end of the drying box (2); a stirring motor (52) is arranged on one side of the stirring box (51); a stirring roller (53) rotatably mounted inside the stirring box (51) is arranged on one side of the stirring motor (52); a discharge nozzle (54) is fixedly connected to one side of the stirring roller (53); and a discharge valve (55) is arranged on one side of the discharge nozzle (54).

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