Waste residue and waste mud filter pressing device

Abstract

The utility model discloses a waste residue and waste mud filter pressing device, and mainly relates to the field of waste mud and waste residue treatment equipment. Comprising a fixedly-arranged shell, the shell comprises a cylindrical part and a conical barrel part which are coaxially connected, a rotating barrel coaxially rotating relative to the shell is arranged in the shell, the rotating barrel is cylindrical, a spiral blade is fixed to the peripheral side of the rotating barrel, and the side of the spiral blade is close to the inner wall of the shell. A plurality of strip-shaped holes extending in the length direction of the rotating cylinder are annularly and evenly distributed in the rotating cylinder in the circumferential direction of the rotating cylinder, the strip-shaped holes are located in the shell, and the strip-shaped holes are covered with filter discs which are detachable relative to the rotating cylinder. The utility model has the beneficial effects that the filter component can be conveniently replaced, so that the maintenance of the filter component does not influence the operation of equipment, and the operation efficiency of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the field of waste mud and waste residue treatment equipment, in particular to a waste residue and waste mud filter press device. Background Art

[0002] Chemical production generates a large amount of waste residue and sludge. Dehydration is typically the initial step in its treatment. This process allows for a preliminary separation of liquids and solids, allowing the wastewater and dehydrated sludge to be collected and treated separately. The waste sludge may then be recycled or dried and collected. After treatment, the wastewater can be reused in production.

[0003] For waste sludge with high mud content, treatment efficiency is particularly important when production is high. Furthermore, during production, the filter media (filter screens, filter cloths, etc.) of related equipment gradually become clogged and lose their filtering capacity after continued use. These filters must be promptly replaced or thoroughly cleaned, resulting in high maintenance costs. Consequently, existing equipment for treating waste sludge and residues generally suffers from low treatment efficiency and difficulty in maintenance. Utility Model Content

[0004] The purpose of the utility model is to provide a waste residue and waste mud filter press device, which can easily replace the filter assembly so that the maintenance of the filter assembly does not affect the operation of the equipment, thereby improving the equipment operation efficiency.

[0005] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical solutions:

[0006] A waste residue and waste mud filter press device includes a fixed shell, the shell includes a cylindrical portion and a conical cylindrical portion connected coaxially, a rotating cylinder that rotates coaxially relative to the shell is provided inside the shell, the rotating cylinder is cylindrical and has spiral blades fixed on its circumference, the sides of the spiral blades are close to the inner wall of the shell, and the rotating cylinder has a plurality of strip-shaped holes extending along its length direction evenly distributed along its circumference in an annular manner, the strip-shaped holes are located in the shell, and the strip-shaped holes are covered with filter discs that are detachable relative to the rotating cylinder.

[0007] The end face of the cylindrical portion away from the conical portion is an annular feed end face, the upper portion of which is provided with a feed port, and the narrower end face of the conical portion is an annular mud discharge end face, the bottom of which is provided with a discharge port.

[0008] One end of the rotating cylinder close to the feed end face penetrates the feed end face and the two are rotatably connected, and one end of the rotating cylinder exposed outside the feed end face is provided with a fixing flange.

[0009] The rotating cylinder is provided with a sealing plate at one end close to the mud discharge end face for sealing it, and a convex block corresponding to the position and number of the strip-shaped holes is provided on the circumferential side of the sealing plate, and a slot is provided on the end face of the convex block away from the sealing plate, and the inner wall of the slot close to the center of the rotating cylinder is an inclined surface, and one end of the filter disc is provided with a wedge-shaped plug that is movably plugged into the slot, and the inner end face of the wedge-shaped plug is a wedge-shaped surface that cooperates with the inclined surface, and a pressure plate is provided on the outer end face of the fixing flange, and a fixing bolt is provided between the pressure plate and the fixing flange to fix the two through.

[0010] The middle part of the pressure plate is connected with a water outlet pipe through a rotary joint.

[0011] Frame strips are provided on both sides of the filter disc, and a positioning ring is provided between the pressure plate and the fixed flange. The inner ring of the positioning ring is provided with an annular step, and the inner ring of the annular step is provided with a positioning groove corresponding to the filter disc and the frame strip. Several gaskets are provided in the annular step, and the side of the gasket close to the positioning ring contacts one end of all the filter discs.

[0012] A driven wheel is fixedly mounted on the circumferential surface of the rotating cylinder located outside the shell, and a driving wheel driven by a motor is provided below the driven wheel. A transmission belt or a transmission chain is wound between the driven wheel and the driving wheel.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] Removable filters allow for quick removal and replacement, reducing maintenance time and costs while efficiently restoring production capacity. Removed filters can be handled separately, such as for cleaning or filter cloth replacement, while detached from the equipment. These maintenance procedures are performed off-line, without disrupting equipment production or taking up production time. This reduces maintenance time overall and increases production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the internal structure of the utility model.

[0016] Figure 2 This utility model Figure 1 Magnified view of part A.

[0017] Figure 3 It is a schematic diagram of the components inside the shell of the utility model.

[0018] Figure 4 It is a schematic diagram of the combination of the rotating cylinder, the positioning ring, the gasket and the filter disc of the utility model.

[0019] Figure 5 It is a schematic diagram of the combination of the positioning ring and the filter disc of the utility model.

[0020] Figure 6It is an overall schematic diagram of the utility model.

[0021] Reference numerals shown in the accompanying drawings:

[0022] 1. Rotating cylinder; 2. Cylindrical part; 3. Conical cylinder; 4. Spiral blade; 5. Feed port; 6. Driven wheel; 7. Driving wheel; 8. Mud discharge end face; 9. Discharge port; 10. Closing plate; 11. Fixed flange; 12. Strip hole; 13. Filter disc; 14. Wedge-shaped insert; 15. Wedge-shaped surface; 16. Bump; 17. Slot; 18. Frame strip; 19. Positioning ring; 20. Annular step; 21. Positioning groove; 22. Gasket; 23. Water outlet pipe; 24. Pressure plate. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the contents of this invention, those skilled in the art may make various changes or modifications to the present invention, and that these equivalent forms also fall within the scope defined in this application.

[0024] The utility model comprises a rotating cylinder 1 and a shell which are coaxially sleeved from the inside to the outside.

[0025] The rotating cylinder 1 and the shell are respectively centrally symmetrical cylinders;

[0026] The shell includes a cylindrical portion 2 and a conical portion 3 , wherein one end of the cylindrical portion 2 and one width end of the conical portion 3 are cocircular and connected.

[0027] The spiral blades 4 are fixed on the circumference of the rotating drum 1 by welding. When the spiral blades 4 rotate with the rotating drum 1, they can push the materials between the spiral blades 4 in a direction, and the pushing direction is from the cylindrical part 2 to the conical part 3 of the shell.

[0028] The sides of the spiral blades 4 are close to the inner wall of the shell, so the spiral blades 4 located in the cylindrical portion 2 have a cylindrical shape, and the spiral blades 4 located in the conical portion 3 also have a corresponding conical shape.

[0029] Therefore, based on the above structure, when the material is pushed from the cylindrical part 2 to the conical part 3, since the rotating cylinder 1 is a cylinder with a constant diameter, the annular cavity formed between the outside of the rotating cylinder 1 and the inside of the conical part 3 gradually shrinks, which has an extrusion effect on the material.

[0030] The end face of the cylindrical portion 2 away from the conical portion 3 is the feed end face, which is an annular end face. The feed end face is penetrated by the rotating drum 1 and is rotatably mounted with the rotating drum 1 through a bearing. A feed port 5 is provided on the upper part of the feed end face for feeding waste mud and waste residue to be treated.

[0031] The rotating drum 1 is located on the circumferential surface outside the shell and is fixed with a driven wheel 6. A driving wheel 7 driven by a motor is provided below the driven wheel 6 (the motor and gearbox are omitted in the figure, which is a common structure). The driven wheel 6 and the driving wheel 7 can be pulleys or sprockets. A transmission belt or a transmission chain is wound between the driven wheel 6 and the driving wheel 7 to drive the rotating drum 1 to rotate. At the same time, a base is provided at the bottom of the shell (the base adopts an arbitrary support structure, not shown in the figure), which is used to be fixed on the table on the floor of the workshop to achieve support and fixation. Through the above structure, a relatively fixed shell and a rotating drum 1 that rotates coaxially in the shell are obtained. The rotation speed of the rotating drum 1 is low-speed rotation, not exceeding 100 rpm, and has a good pushing effect on mud residue with a high mud content.

[0032] The narrower end face of the conical cylinder portion 3 is the mud discharge end face 8, which is an annular end face. The center of the mud discharge end face 8 is rotatably mounted to the rotating drum 1 via a bearing. A discharge port 9 is provided at the bottom of the mud discharge end face 8 for discharging the sludge after filtration. A sealing plate 10 is provided at one end of the rotating drum 1 close to the mud discharge end face 8, which seals this end of the rotating drum 1. A fixing flange 11 is provided at the other end of the rotating drum 1. The fixing flange 11 is an annular flange with multiple flange holes extending therethrough. The fixing flange 11 is located outside the housing.

[0033] The side wall of the rotating drum 1 is provided with a strip-shaped hole 12 passing through it. The length direction of the strip-shaped hole 12 is consistent with the axial direction of the rotating drum 1. There are multiple strip-shaped holes 12 and they are distributed in a ring along the rotating drum 1. In this example, there are 6 strip-shaped holes 12.

[0034] The strip-shaped hole 12 is located in the housing, and its length is adapted to the length of the housing.

[0035] A filter disc 13 that can be easily removed is provided at a position corresponding to the strip-shaped hole 12 in the rotating cylinder 1. The filter disc 13 is an arc-shaped disc adapted to the inner wall of the rotating cylinder 1. A filter screen is provided on the filter disc 13, or the filter disc 13 is covered with a filter cloth.

[0036] A wedge-shaped insert 14 is provided at one end of the filter disc 13. The width of the wedge-shaped insert 14 is the same as or slightly wider than the filter disc 13, and can cover one end of the filter disc 13, thereby improving the shape of the filter disc 13 and making it easy to cooperate with the slot 17 as a whole. The inner end face of the wedge-shaped plug 14 is an inclined wedge-shaped surface 15, so that the cross-section of the wedge-shaped plug 14 is triangular. The inner end face of the sealing plate 10 is provided with a protrusion 16 corresponding to the position and number of the strip-shaped holes 12 along its circumference. The end face of the protrusion 16 away from the sealing plate 10 is provided with a slot 17. The width of the slot 17 is adapted to the width of the wedge-shaped block, which can position the filter disc 13 at the position of the strip-shaped hole 12. The inner side wall of the slot 17 close to the axis of the rotating drum 1 is an inclined surface, and the inclined surface is used to cooperate with the wedge-shaped surface 15 of the wedge-shaped plug 14. When the filter disc 13 is inserted into one end of the sealing plate 10, the inclined surface can make the filter disc 13 closer to the inner wall of the rotating drum 1 and the insertion is reliable, which can not only realize the constraint of the circumferential position of the filter disc 13 relative to the rotating drum 1 (the width of the slot 17 and the side walls on both sides) but also improve the tightening effect and facilitate the filter disc 13 to fit the strip-shaped hole 12.

[0037] Frame strips 18 are provided on both sides of the filter disc 13 to improve shape retention and prevent deformation. The frame strips 18 can be made of steel. The length of the filter disc 13 is longer than the rotating drum 1. When one end of the wedge-shaped plug 14 of the filter disc 13 is tightly inserted into the slot 17, the other end of the filter disc 13 extends out of the rotating drum 1 by a length L0 (the distance between the end of the filter disc 13 away from the wedge-shaped plug 14 and the outer end surface of the fixing flange 11).

[0038] The outer end surface of the fixed flange 11 is provided with a positioning ring 19 of the cylindrical shaft, a washer 22 and a pressure plate 24 .

[0039] The outer diameter of the positioning ring 19 is smaller than that of the fixing flange 11 and exposes the flange hole. The inner ring of the positioning ring 19 is provided with an annular step 20, which is used to accommodate a gasket 22. One or more gaskets 22 can be placed as needed to fill the space between the annular step 20 and the pressure plate 24. The outer diameter of the gasket 22 corresponds to or is smaller than the diameter of the annular step 20 and is placed within the annular step 20. The gasket 22 is made of rubber and can cover the filter disc 13, exerting a certain pressure on one end of the filter disc 13. The inner ring of the annular step 20 is provided with a positioning groove 21 corresponding to the filter disc 13. The positioning groove 21 is an arc-shaped groove whose shape and position are adapted to the filter disc 13. The inner ring of the positioning groove 21 adapts to the curvature of the outer curved surface of the filter disc 13, which is used to accommodate and position the filter disc 13.

[0040] The outer diameter of the pressure plate 24 is adapted to the outer diameter of the fixing flange 11 . A plurality of fixing bolts are passed through the pressure plate 24 . The fixing bolts pass through the flange holes and are fixedly locked to the flange.

[0041] The gasket is placed in the annular step 20, and the locking pressure is transmitted to the gasket 22 and one end of the filter disc 13 in turn through the flange. The filter disc 13 is limited by the arc groove on the annular step 20. Combined with the positioning and tightening effect of the slot 17 at one end of the sealing plate 10, the filter disc 13 can be fixed in the position of the strip hole 12 to achieve the filtering effect. The waste residue and waste mud are squeezed and filtered in the space, and the water inside enters the rotating drum 1 through the filter disc 13 to achieve separation from the waste residue and waste mud.

[0042] The middle of the pressure plate 24 is connected to a water outlet pipe 23 via a rotary joint for discharging the separated wastewater.

[0043] Based on the above connection structure, the installation and use method of the filter assembly of the filter press device is:

[0044] Remove the pressure plate 24 from the fixed flange 11, then place the filter discs 13 one by one close to the inner wall of the rotating cylinder 1 and insert them into the corresponding strip holes 12, so that the wedge-shaped plug 14 is inserted into the slot 17. Then place the positioning ring 19 on the flange end face of the fixed flange 11 so that the end of the filter disc 13 protruding from the fixed flange 11 is located in the positioning groove 21, place the gasket in the annular step 20 and press it on one end of the filter disc 13, place 1-3 gaskets as needed, cover the pressure plate 24 and tighten the fixing bolts on the fixed flange 11, and the installation is complete.

[0045] The detachable filter disc 13 allows for quick removal and replacement, reducing maintenance time and costs while efficiently restoring production capacity. The replaced filter disc 13 can be handled separately, such as by cleaning or replacing the filter cloth, while detached from the equipment. These maintenance procedures are performed off-line, without affecting equipment production or taking up production time. This overall reduction in maintenance time improves production capacity.

Claims

1. A waste residue and waste mud filter press device, characterized in that: It comprises a fixed shell, which comprises a cylindrical portion and a conical portion connected coaxially. A rotating cylinder is provided in the shell and rotates coaxially relative to the shell. The rotating cylinder is cylindrical and has spiral blades fixed on its circumference. The sides of the spiral blades are close to the inner wall of the shell. The rotating cylinder is provided with a plurality of strip-shaped holes extending along its length direction, which are evenly distributed in an annular manner along its circumference. The strip-shaped holes are located in the shell and are covered with a filter disc that is detachable relative to the rotating cylinder.

2. The waste residue and waste mud filter press device according to claim 1, characterized in that: The end face of the cylindrical portion away from the conical portion is an annular feed end face, the upper portion of which is provided with a feed port, and the narrower end face of the conical portion is an annular mud discharge end face, the bottom of which is provided with a discharge port.

3. The waste residue and waste mud filter press device according to claim 2, characterized in that: One end of the rotating cylinder close to the feed end face penetrates the feed end face and the two are rotatably connected, and one end of the rotating cylinder exposed outside the feed end face is provided with a fixing flange.

4. The waste residue and waste mud filter press device according to claim 3, characterized in that: The rotating cylinder is provided with a sealing plate at one end close to the mud discharge end face for sealing it, and a convex block corresponding to the position and number of the strip-shaped holes is provided on the circumferential side of the sealing plate, and a slot is provided on the end face of the convex block away from the sealing plate, and the inner wall of the slot close to the center of the rotating cylinder is an inclined surface, and one end of the filter disc is provided with a wedge-shaped plug that is movably plugged into the slot, and the inner end face of the wedge-shaped plug is a wedge-shaped surface that cooperates with the inclined surface, and a pressure plate is provided on the outer end face of the fixing flange, and a fixing bolt is provided between the pressure plate and the fixing flange to fix the two through.

5. The waste residue and waste mud filter press device according to claim 4, characterized in that: The middle part of the pressure plate is connected with a water outlet pipe through a rotary joint.

6. The waste residue and waste mud filter press device according to claim 4, characterized in that: Frame strips are provided on both sides of the filter disc, and a positioning ring is provided between the pressure plate and the fixed flange. The inner ring of the positioning ring is provided with an annular step, and the inner ring of the annular step is provided with a positioning groove corresponding to the filter disc and the frame strip. Several gaskets are provided in the annular step, and the side of the gasket close to the positioning ring contacts one end of all the filter discs.

7. The waste residue and waste mud filter press device according to claim 3, characterized in that: A driven wheel is fixedly mounted on the circumferential surface of the rotating cylinder located outside the shell, and a driving wheel driven by a motor is provided below the driven wheel. A transmission belt or a transmission chain is wound between the driven wheel and the driving wheel.

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