Crushing device for preparing baking-free bricks from municipal domestic sludge

Abstract

The utility model discloses a crushing device for preparing baking-free bricks from urban domestic sludge, and belongs to the field of baking-free brick preparation. A smashing device for preparing baking-free bricks from urban domestic sludge comprises a fixed cylinder, supporting legs are fixedly connected to the lower half portions of the two opposite sides of the fixed cylinder, a feeding assembly is arranged on the upper half portion of one side of the fixed cylinder, a discharging opening is formed in the bottom of the fixed cylinder, a screen cylinder is rotationally connected to the peripheral face of the fixed cylinder, and the screen cylinder is composed of a plurality of screening units. Wherein one screening unit is located under the discharging opening, a plurality of rotating handles are fixedly connected to the peripheral face of the screening drum, and a smashing part is arranged in the fixed drum. When the crushing degree is adjusted by adjusting the distance between the two crushing rollers, the other screening unit can be moved to the position under the discharge port to participate in screening operation by rotating the screen drum, so that the screening target is adjusted, the device can crush and screen crushed slag of various sizes, and the applicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of non-fired brick preparation technology, and in particular to a crushing device for preparing non-fired bricks from urban sewage sludge. Background Technology

[0002] Municipal sewage sludge is an industrial solid waste generated during urban wastewater treatment. It has a water content as high as 80% and contains organic matter, microorganisms, pathogens, heavy metals, etc. Using municipal sewage sludge to make non-fired bricks is an effective sludge disposal method, allowing for complete treatment and resource utilization. The specific method is as follows: Municipal sewage sludge is passed through a vacuum furnace at 800 degrees Celsius to burn the microorganisms, bacteria, and organic matter in the sludge into inorganic substances, while heavy metals are solidified into inorganic carriers, becoming sludge ash. This ash is then pulverized into a powder suitable for brick making; a certain proportion of cement binder is added and mixed evenly; the mixture is then fed into a brick-making machine for molding; and finally, the bricks are cured in a warehouse for 200 hours, completing the non-fired brick production process.

[0003] A search revealed Chinese patent CN212759067U, which discloses a slag brick-making crushing device. The device includes a base with a cavity on its upper surface. A crushing mechanism is housed within the cavity, and a circulation mechanism connected to one side of the cavity is also present. A cleaning mechanism, comprising a cleaning block positioned above and parallel to a screen, is also located within the cavity. A cleaning cylinder is fixedly connected to one side of the cleaning block and is positioned outside the cavity. This slag brick-making crushing device utilizes a circulation mechanism to transfer insufficiently crushed raw materials into the cavity for repeated crushing, ensuring the quality of the crushed slag. A slider and adjusting column connect the crushing rollers, allowing adjustment of the spacing between them according to crushing requirements. Furthermore, the cleaning mechanism pushes raw materials accumulated on the screen into the conveying cavity, ensuring efficient crushing.

[0004] This patent allows for adaptability to various crushing requirements and the production of crushed slag of different sizes by adjusting the distance between the two crushing rollers. However, the screening target of the screen in this patent is not adjustable, which means that the screen can only be used to screen one size of crushed slag, resulting in poor applicability and requiring improvement.

[0005] Therefore, we have made improvements to this and proposed a crushing device for preparing non-fired bricks from urban sewage sludge. Utility Model Content

[0006] The purpose of this invention is to solve the problem of poor applicability of screens in the prior art, and to propose a crushing device for preparing non-fired bricks from urban sewage sludge.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A crushing device for preparing non-fired bricks from municipal sewage sludge includes a fixed cylinder with legs fixedly connected to the lower half of both sides of the fixed cylinder. A feeding assembly is provided on the upper half of one side of the fixed cylinder. A discharge port is opened at the bottom of the fixed cylinder. A screen cylinder is rotatably connected to the outer circumference of the fixed cylinder. The screen cylinder is composed of several screening units, one of which is located directly below the discharge port. Several rotating handles are fixedly connected to the outer circumference of the screen cylinder. A crushing section is provided inside the fixed cylinder, and a slag discharge port is opened on the outer circumference of the screen cylinder.

[0009] As a preferred technical solution of this application, the crushing part includes two sliding tracks respectively opened on opposite sides of the fixed cylinder. A first motor is fixedly connected to the inner wall of the sliding track, and a lead screw is driven to the output end of the first motor. The outer circumferential surface of the lead screw is provided with two sections of threads with opposite directions, and screw blocks are threadedly connected to the two sections of threads on the outer circumferential surface of the lead screw. A crushing unit is provided between the two screw blocks.

[0010] As a preferred technical solution of this application, the crushing unit includes a rotating rod rotatably connected between two corresponding screw blocks, a crushing roller is fixedly sleeved on the outer circumferential surface of the rotating rod, and a driving member is provided on the side wall of the corresponding screw block. The driving member is used to drive the corresponding rotating rod to rotate.

[0011] As a preferred technical solution of this application, the feeding assembly includes a feeding pipe fixedly inserted through the upper half of one side of the fixed cylinder. The portion of the feeding pipe inside the fixed cylinder is horizontally arranged, and a second motor is fixedly connected to one end of the feeding pipe inside the fixed cylinder. A drive rod is drivenly connected to the output end of the second motor. The drive rod extends into the feeding pipe, and a spiral blade is fixedly sleeved on the outer circumference of the drive rod. A discharge port is opened at the bottom of the feeding pipe.

[0012] As a preferred technical solution of this application, a plurality of rotating handles are arranged in a uniform ring, and the number of rotating handles is the same as the number of screening units.

[0013] As a preferred technical solution of this application, a collecting hopper is fixedly connected between the two supporting legs. The collecting hopper is located directly below the discharge port. A discharge pipe is fixedly inserted through the bottom of the collecting hopper, and the top surface of the collecting hopper is inclined downward on the side closest to the discharge pipe.

[0014] As a preferred technical solution of this application, a driven rod is rotatably connected to the lower half of the fixed cylinder, a lever is fixedly sleeved on the outer circumferential surface of the driven rod, the driven rod extends to the outside of the fixed cylinder, and the driven rod is connected to the driving rod by belt drive.

[0015] Compared with the prior art, this utility model provides a crushing device for preparing non-fired bricks from urban sewage sludge, which has the following beneficial effects:

[0016] This crushing device for preparing non-fired bricks from municipal sewage sludge, through the coordination of a screen cylinder, a fixed cylinder, a crushing section, and a feeding assembly, allows for the adjustment of the crushing degree by adjusting the distance between the two crushing rollers. By rotating the screen cylinder, another screening unit can be moved to the position directly below the discharge port to participate in the screening operation, thereby adjusting the screening target. This enables the device to crush and screen slag of various sizes, improving its applicability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the orthographic section of the present invention;

[0019] Figure 3 This is a schematic diagram of the upper part of the present invention;

[0020] Figure 4 This is a schematic diagram of the orthographic structure of the fixing cylinder and the sieve cylinder of this utility model;

[0021] Figure 5 This is a side sectional view of the fixed cylinder and screen cylinder of this utility model.

[0022] In the picture:

[0023] 1. Fixed cylinder; 2. Support leg; 3. Feeding assembly; 31. Feeding pipe; 32. Second motor; 33. Drive rod; 34. Spiral blade; 35. Discharge port; 4. Discharge port; 5. Screen cylinder; 51. Screening unit; 6. Rotating handle; 7. Crushing section; 71. Sliding track; 72. First motor; 73. Lead screw; 74. Screw block; 75. Crushing unit; 751. Rotating rod; 752. Crushing roller; 753. Drive component; 8. Collection hopper; 9. Discharge pipe; 10. Slag discharge port; 11. Driven rod; 12. Paddle plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0025] Reference Figure 1-5A crushing device for preparing non-fired bricks from urban sewage sludge includes a fixed cylinder 1. Support legs 2 are fixedly connected to the lower half of opposite sides of the fixed cylinder 1. A feeding assembly 3 is provided on the upper half of one side of the fixed cylinder 1. A discharge port 4 is opened at the bottom of the fixed cylinder 1. A screen cylinder 5 is rotatably connected to the outer circumference of the fixed cylinder 1. The screen cylinder 5 is composed of several screening units 51, one of which is located directly below the discharge port 4. Several rotating handles 6 are fixedly connected to the outer circumference of the screen cylinder 5. A crushing part 7 is provided inside the fixed cylinder 1. A slag discharge port 10 is opened on the outer circumference of the screen cylinder 5.

[0026] The screening targets of several screening units 51 are different. Sludge and ash enter the fixed cylinder 1 through the feeding component 3, and are then crushed by the crushing part 7. After passing through the discharge port 4, they fall onto the corresponding screening unit 51 and are discharged from the fixed cylinder 1 after screening. By rotating the screen cylinder 5, different screening units 51 can be rotated to the position directly below the discharge port 4 to participate in the screening operation, thus adjusting the screening target. The screen cylinder 5 can be easily rotated by the operator by rotating the handle 6.

[0027] When it is necessary to discharge large pieces of material that cannot pass through the screening unit 51 inside the screen cylinder 5, rotate the slag discharge port 10 to the lower position so that the large pieces of material are discharged through the slag discharge port 10.

[0028] like Figure 3-4 As shown, in a preferred embodiment, based on the above method, the crushing unit 7 further includes two sliding tracks 71 respectively opened on opposite sides of the fixed cylinder 1. A first motor 72 is fixedly connected to the inner wall of the sliding track 71. A lead screw 73 is driven to the output end of the first motor 72. The outer peripheral surface of the lead screw 73 is provided with two sections of threads with opposite directions. Each of the two sections of threads on the outer peripheral surface of the lead screw 73 is threadedly connected to a screw block 74. A crushing unit 75 is provided between the two screw blocks 74.

[0029] When the first motor 72 is working, it drives the lead screw 73 to rotate. The rotation of the lead screw 73 drives the two corresponding screw blocks 74 to move in the opposite direction, thereby driving the two crushing units 75 to move in the opposite direction. The end of the lead screw 73 away from the first motor 72 is rotatably connected to the inner wall of the sliding track 71.

[0030] like Figure 3-4 As shown, in a preferred embodiment, based on the above method, the crushing unit 75 further includes a rotating rod 751 rotatably connected between two corresponding screw blocks 74. A crushing roller 752 is fixedly sleeved on the outer circumferential surface of the rotating rod 751. A driving member 753 is provided on the side wall of the corresponding screw block 74. The driving member 753 is used to drive the corresponding rotating rod 751 to rotate.

[0031] The driving component 753 includes a third motor fixedly connected to the side wall of the screw block 74. The output end of the third motor is connected to the rotating rod 751 through a pair of gears. When the third motor is working, it drives the rotating rod 751 to rotate, and the rotating rod 751 drives the crushing roller 752 to rotate. The two driving components 753 rotate in opposite directions, so that the two crushing rollers 752 rotate in opposite directions. The sludge and ash fall between the two crushing rollers 752 and are crushed, and then pass through the crushing rollers 752.

[0032] When the first motor 72 is working, it drives the two crushing rollers 752 to move in opposite directions, thereby adjusting the distance between the two crushing rollers 752 and thus adjusting the degree of crushing.

[0033] like Figure 2 and Figure 5 As shown, in a preferred embodiment, based on the above method, the feeding assembly 3 further includes a feeding pipe 31 fixedly inserted through the upper half of one side of the fixed cylinder 1. The portion of the feeding pipe 31 inside the fixed cylinder 1 is horizontally arranged, and a second motor 32 is fixedly connected to one end of the feeding pipe 31 inside the fixed cylinder 1. A drive rod 33 is drivenly connected to the output end of the second motor 32. The drive rod 33 extends into the feeding pipe 31, and a spiral blade 34 is fixedly sleeved on the outer circumference of the drive rod 33. A discharge port 35 is opened at the bottom of the feeding pipe 31. The discharge port 35 is located above the position between the two crushing rollers 752. Therefore, after the sludge and ash are discharged from the discharge port 35, they will fall between the two crushing rollers 752.

[0034] Sludge and ash are added into the feed pipe 31. The second motor 32 drives the drive rod 33 and the spiral blade 34 to rotate. The spiral blade 34 pushes the sludge and ash to move in the feed pipe 31, so that the sludge and ash move to the discharge port 35 and then fall between the two crushing rollers 752.

[0035] like Figure 1 As shown, in a preferred embodiment, based on the above method, a plurality of rotating handles 6 are arranged in a uniform ring, and the number of rotating handles 6 is the same as the number of screening units 51, and the number of screening units 51 is five.

[0036] When rotating the screen cylinder 5, the staff can observe the position of the rotating handle 6 to determine whether the corresponding screening unit 51 has moved to the appropriate position, which facilitates the operation of the staff.

[0037] like Figure 1 As shown, in a preferred embodiment, based on the above method, a collection hopper 8 is fixedly connected between the two support legs 2. The collection hopper 8 is located directly below the discharge port 4. A discharge pipe 9 is fixedly inserted through the bottom of the collection hopper 8. The top surface of the collection hopper 8 is inclined downward on the side closest to the discharge pipe 9.

[0038] After being crushed, the sludge and ash fall into the collection hopper 8 through the screening unit 51 and are then discharged through the discharge pipe 9. The staff can place the collection box below the discharge pipe 9 to collect the crushed sludge and ash.

[0039] like Figure 5 As shown, in a preferred embodiment, based on the above method, the lower half of the fixed cylinder 1 is rotatably connected to a driven rod 11, the outer circumferential surface of the driven rod 11 is fixedly sleeved with a lever plate 12, the driven rod 11 extends to the outside of the fixed cylinder 1, and the driven rod 11 is connected to the drive rod 33 by belt drive.

[0040] When the drive rod 33 rotates, it drives the driven rod 11 and the deflector plate 12 to rotate via the belt. When the deflector plate 12 rotates, it moves the sludge and ash that fall on the screening unit 51, preventing them from accumulating on the screening unit 51 and clogging it, thereby improving the screening effect.

[0041] Specifically, in use, the crushing device for preparing non-fired bricks from municipal sewage sludge works as follows: the second motor 32 and two drive components 753 operate; sewage sludge and ash are added into the feed pipe 31; the second motor 32 drives the drive rod 33 and the spiral blade 34 to rotate; the spiral blade 34 pushes the sewage sludge and ash to move in the feed pipe 31, causing the sewage sludge and ash to move to the discharge port 35, and then fall between the two crushing rollers 752; the drive component 753 drives the two crushing rollers 752 to rotate in opposite directions, crushing the sewage sludge and ash into powder. The sludge and ash are crushed and then pass through the discharge port 4 and the corresponding screening unit 51. After screening, they fall into the collection hopper 8 and are collected. When the drive rod 33 rotates, it drives the driven rod 11 and the deflector 12 to rotate through the belt. When the deflector 12 rotates, it deflects the sludge and ash falling on the screening unit 51 to prevent it from accumulating on the screening unit 51 and clogging the screening unit 51, thereby improving the screening effect. After screening, the slag discharge port 10 is rotated to the lower position so that large pieces of material that cannot pass through the screen cylinder 5 are discharged.

[0042] When the degree of crushing needs to be adjusted, the two first motors 72 are started to work, driving the lead screw 73 to rotate. The rotation of the lead screw 73 drives the corresponding two screw blocks 74 to move in the opposite direction, thereby driving the two crushing rollers 752 to move in the opposite direction. At the same time, the operator rotates the screen cylinder 5 to rotate the corresponding screening unit 51 to the position directly below the discharge port 4 to participate in the screening operation.

[0043] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A kind of urban domestic sludge preparation unburned brick with crushing device, including fixed cylinder (1), the fixed cylinder (1) is fixedly connected with the support (2) in the lower half of two sides, characterized by, The fixed cylinder (1) is provided with a feeding assembly (3) on one side of the upper half, the bottom of the fixed cylinder (1) is provided with a discharge port (4), the outer periphery of the fixed cylinder (1) is rotatably connected with a screen cylinder (5), the screen cylinder (5) is composed of a plurality of screening units (51), one of the screening units (51) is located directly below the discharge port (4), the outer periphery of the screen cylinder (5) is fixedly connected with a plurality of rotating handles (6), the fixed cylinder (1) is provided with a crushing part (7) inside, and the outer periphery of the screen cylinder (5) is provided with a slag discharge port (10).

2. A device for reducing the size of municipal sewage sludge for use in the production of unfired bricks according to claim 1, characterized in that, The crushing part (7) comprises two sliding channels (71) respectively provided on opposite sides of the fixed cylinder (1), the inner side wall of the sliding channel (71) is fixedly connected with a first motor (72), the output end of the first motor (72) is drivingly connected with a lead screw (73), the outer periphery of the lead screw (73) is provided with two threads with opposite rotation directions, and the outer periphery of the lead screw (73) is threadedly connected with a screw block (74) at the two thread positions, and a crushing unit (75) is arranged between the two screw blocks (74).

3. A device for reducing the size of municipal sewage sludge for use in the production of unfired bricks according to claim 2, characterized in that, The crushing unit (75) comprises a rotating rod (751) rotatably connected between the two screw blocks (74), the outer periphery of the rotating rod (751) is fixedly sleeved with a crushing roller (752), and a driving member (753) is arranged on the side wall of the corresponding screw block (74).

4. A device for reducing the size of municipal sewage sludge for use in the production of unfired bricks according to claim 3, characterized in that, The feeding assembly (3) comprises a feeding pipe (31) fixedly penetrating through one side of the upper half of the fixed cylinder (1), the part of the feeding pipe (31) located in the fixed cylinder (1) is horizontally arranged, one end of the feeding pipe (31) located in the fixed cylinder (1) is fixedly connected with a second motor (32), the output end of the second motor (32) is drivingly connected with a driving rod (33), the driving rod (33) extends into the feeding pipe (31), the outer periphery of the driving rod (33) is fixedly sleeved with a spiral blade (34), and the bottom of the feeding pipe (31) is provided with a discharge port (35).

5. A device for reducing the size of municipal sewage sludge for use in the production of unfired bricks according to claim 4, characterized in that, The plurality of rotating handles (6) are arranged in uniform annular arrangement, and the number of the rotating handles (6) is the same as that of the screening units (51).

6. A device for reducing the size of municipal sewage sludge for use in the production of unfired bricks according to claim 5, characterized in that, The two supporting legs (2) are fixedly connected with a collecting hopper (8), the collecting hopper (8) is located directly below the discharge port (4), the bottom of the collecting hopper (8) is fixedly provided with a discharge pipe (9), and the top surface of the collecting hopper (8) is inclined downward on the side close to the discharge pipe (9).

7. A device for reducing the size of municipal sewage sludge for use in the production of unfired bricks according to claim 6, characterized in that, The fixed cylinder (1) is rotatably connected with a driven rod (11) in the lower half, the outer periphery of the driven rod (11) is fixedly sleeved with a push plate (12), part of the driven rod (11) extends to the outside of the fixed cylinder (1), and the driven rod (11) and the driving rod (33) are drivingly connected through a belt.

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