Wet sludge tubular impurity remover and impurity removing assembly

Abstract

The utility model belongs to the technical field of sludge treatment, and particularly relates to a wet sludge tubular impurity remover and an impurity removal assembly, the wet sludge tubular impurity remover comprises a shell, a filter cartridge is arranged in the shell, one end of the shell is provided with an inlet pipe, the other end of the shell is provided with an outlet pipe, the inlet pipe is a straight pipe, and the outlet pipe is a straight pipe. The outlet pipe is a first bent pipe, and the bending inclination angle of the first bent pipe ranges from 25 degrees to 35 degrees. The structure of the impurity remover is arranged in a line-like manner, so that the impurity remover can be adapted to a place with a narrow installation space height, the overall flow resistance in the impurity remover is reduced, and the cleaning and overhauling work intensity is also reduced.

Description

Technical Field

[0001] The utility model relates to a wet sludge tubular impurity remover and an impurity removal component, belonging to the technical field of sludge treatment. Background Art

[0002] Wet sludge with an 80% moisture content often contains impurities such as cloth strips, plastic fillers, stones, and iron objects, seriously affecting the normal operation of wet sludge conveying and drying equipment. During wet sludge conveying, a tubular impurity remover is typically installed in the conveying pipeline. The impurity remover contains a debris screen with large rectangular holes. The feed pipe and sludge discharge pipe are installed at a 90° angle at the inlet and outlet of the impurity remover. The impurity remover screen removes large particles of impurities to improve the safety and stability of equipment operation. However, in places with narrow and low equipment installation space, impurity removers with right-angle connection structures cannot be installed. In addition, impurity removers with right-angle connection structures have large pressure loss. In order to adapt the wet sludge impurity remover to installation in narrow and low spaces and reduce the internal pressure loss of the impurity remover, a new tubular impurity remover needs to be designed. Summary of the Invention

[0003] In view of the above-mentioned defects of the prior art, the utility model provides a wet sludge tubular impurity remover and an impurity removal component.

[0004] The technical solution of the utility model for solving the above technical problems is as follows: a wet sludge tube-type impurity remover, comprising an outer shell, a filter cartridge installed in the outer shell, an inlet pipe provided at one end of the outer shell, and an outlet pipe provided at the other end of the outer shell, the inlet pipe being a straight pipe, the outlet pipe being a first curved pipe, and the bending inclination angle of the first curved pipe being 25°-35°.

[0005] The beneficial effects of the wet sludge tubular impurity remover of the present invention are as follows: the shell inlet pipe of the present invention adopts a straight pipe, the outlet pipe adopts a first bend pipe, and the bending inclination angle of the first bend pipe is 25°-35°, so that the structure of the entire tubular impurity remover is similar to a straight-line arrangement, so that it can be adapted to places with a relatively narrow installation space height. In addition, the straight-line structure reduces the overall flow resistance in the impurity remover to about 0.2-0.5Mpa, has a smaller circulation resistance, and also reduces the intensity of cleaning and maintenance work; in addition, the present invention can also select different filter cartridges according to the needs of production and processing and the type of impurities mixed in the sludge, has strong reliability, and can withstand the high-pressure conveying force of sludge conveying.

[0006] On the basis of the above technical solution, the present invention can also make the following improvements:

[0007] Furthermore, a filter plate is provided in the filter cartridge, the filter plate is provided at the rear of the filter cartridge, a plurality of fourth filter holes are provided on the filter plate, and the filter plate divides the inner cavity of the filter cartridge into a front filter chamber and a rear filter chamber.

[0008] The beneficial effect of adopting the above further technical solution is that the sludge in the filter cylinder is filtered and impurities are removed through the filter plate, and the wet sludge after filtering and impurities removal enters the filter back chamber from the filter front chamber.

[0009] Furthermore, a filter cavity is provided between the filter cartridge and the shell, a plurality of first filter holes are circumferentially provided on the cartridge wall of the front filter chamber, and a plurality of second filter holes are circumferentially provided on the cartridge wall of the rear filter chamber, and the aperture of the second filter holes is larger than that of the first filter holes.

[0010] The beneficial effect of adopting the above-mentioned further technical solution is: after the wet sludge enters the filter cartridge, it passes through the multiple first filter holes on the wall of the front filter chamber, separating the sludge and debris, and the larger debris is retained in the filter cartridge; part of the wet sludge enters the filter cavity formed between the outer shell and the filter cartridge, and then the sludge enters the rear filter chamber of the filter cartridge through the second filter holes on the wall of the rear filter chamber, thereby improving the impurity removal effect of the wet sludge.

[0011] Furthermore, an intermediate support flange is inserted into the outer side of the filter cartridge, and the intermediate support flange divides the filter cavity into cavity one and cavity two. A plurality of third filter holes are provided on the intermediate support flange, and the aperture of the third filter hole is larger than the aperture of the first filter hole.

[0012] The beneficial effect of adopting the above-mentioned further technical solution is that after the wet sludge enters the filter cartridge, it passes through the multiple first filter holes on the wall of the filter front chamber, and part of the wet sludge enters the cavity one and cavity two of the filter cavity formed between the outer shell and the filter cartridge respectively. The sludge in cavity one then enters cavity two through the third filter hole of the intermediate support flange, thereby improving the filtering and impurity removal effect of the wet sludge.

[0013] Furthermore, the aperture of the first filter hole is 18-25 mm, the aperture of the second filter hole is 40-50 mm, the aperture of the third filter hole is 40-50 mm, and the aperture of the fourth filter hole is 18-25 mm.

[0014] Furthermore, end support flanges are respectively sleeved on the outer sides of both ends of the filter cartridge, the inner hole diameters of the end support flanges and the intermediate support flanges are adapted to the outer diameter of the filter cartridge, and the outer circle diameters of the end support flanges and the intermediate support flanges are smaller than the inner diameter of the outer shell.

[0015] The beneficial effects of adopting the above-mentioned further technical solution are: the end support flange realizes the installation and support of the filter cartridge in the outer shell, and the middle support flange not only provides a wet sludge filtration channel, but also realizes the support and reinforcement of the filter cartridge. The outer diameters of the end support flange and the middle support flange are both smaller than the inner diameter of the outer shell, which facilitates the removal of the filter cartridge, realizes the detachable installation of the filter cartridge in the outer shell, and facilitates the replacement and maintenance of the filter cartridge.

[0016] Furthermore, the outlet pipe is mounted on the outer shell through a rear end cover, and the diameter of the outlet pipe is smaller than or equal to the diameter of the filter cartridge.

[0017] The beneficial effect of adopting the above-mentioned further technical solution is that the outlet pipe is installed through the rear end cover, and the outlet pipe can be easily connected and opened to the shell by opening the rear end cover, so that the filter cartridge can be easily taken out and cleaned.

[0018] Furthermore, the rear end cover is hinged to the shell through a hinge mechanism and fixed through a shell flange and fastening bolts. A boss is provided on the surface of the rear end cover in contact with the shell, and the diameter of the boss is smaller than the inner hole diameter of the shell flange.

[0019] The beneficial effects of adopting the above-mentioned further technical solution are: the rear end cover is hingedly mounted on the outer shell and fixed by the shell flange and fastening bolts. It is convenient to open and close the rear end cover, and the connection is tight and not prone to leakage. The boss further improves the tightness of the connection between the rear end cover and the outer shell.

[0020] The utility model also relates to a wet sludge tube type impurity removal component, comprising the above-mentioned wet sludge tube type impurity remover, and also comprising a sludge feed pipe, a second bent pipe and a sludge discharge pipe, wherein the sludge feed pipe is connected to the inlet pipe of the wet sludge tube type impurity remover, one end of the second bent pipe is connected to the outlet pipe of the wet sludge tube type impurity remover, and the other end of the second bent pipe is connected to the sludge discharge pipe.

[0021] Furthermore, the bending inclination angle of the second bend is 25°-35°, a gate valve is provided at the connection between the sludge discharge pipe and the second bend, and a first pressure sensor and a second pressure sensor are provided on the sludge feed pipe and the sludge discharge pipe respectively.

[0022] The wet sludge tubular impurity removal component of the utility model has the following beneficial effects: the utility model has a simple structure, is easy to install, has high reliability, has a small impurity removal pressure loss, and is suitable for places with narrow spaces and low heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the wet sludge tubular impurity remover of the present utility model;

[0024] Figure 2This is a cross-sectional view of the wet sludge tubular impurity remover of the present utility model;

[0025] Figure 3 This is the main view of the filter cartridge;

[0026] Figure 4 for Figure 3 AA section view;

[0027] Figure 5 It is a structural diagram of the intermediate support flange;

[0028] Figure 6 It is a structural diagram of the rear end cover and the outlet pipe;

[0029] Figure 7 It is a structural diagram of the hinge mechanism;

[0030] Figure 8 This is a schematic diagram of the overall structure of the wet sludge tubular impurity removal component of the present invention.

[0031] The reference numerals are as follows: 100, sludge feed pipe; 101, first pressure sensor; 200, wet sludge tubular impurity remover; 201, housing; 202, filter cartridge; 203, end support flange; 204, inlet pipe; 205, outlet pipe; 206, filter plate; 2061, fourth filter hole; 207, filter front chamber; 2071, first filter hole; 208, filter back chamber; 2081, second filter hole; 209, Intermediate supporting flange; 2091, third filter hole; 210, cavity chamber 1; 211, cavity chamber 2; 212, rear end cover; 213, shell flange; 214, fastening bolts; 215, O-ring; 300, second elbow; 301, handle; 400, sludge discharge pipe; 401, second pressure sensor; 500, gate valve; 600, hinged mechanism; 601, ear plate; 602, connecting pin; 603, hook plate. DETAILED DESCRIPTION

[0032] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0033] See also Figure 1-7, a wet sludge tubular impurity remover 200, comprising a shell 201, a filter cartridge 202 is installed in the shell 201, the filter cartridge 202 is an integral cylindrical filter cartridge, and the filter cartridge 202 is made of stainless steel, so that the filter cartridge 202 has strong corrosion resistance. Specifically, the outer sides of the two ends of the filter cartridge 202 are respectively sleeved with end support flanges 203, the end support flanges 203 are welded to the filter cartridge 202, and the filter cartridge 202 can be easily disassembled and cleaned from the shell 201 through the installation of the end support flanges 203. An inlet pipe 204 is provided at one end, and an outlet pipe 205 is provided at the other end of the shell 201. The inlet pipe 204 is a straight pipe, and the outlet pipe 205 is a first bend pipe. The bending inclination angle of the first bend pipe is 25°-35°, wherein the bending inclination angle of the first bend pipe is the angle between the central axis of the bending section of the first bend pipe and the central axis of the straight section, and can also be understood as the angle ∠α between the central axis of the bending section of the first bend pipe and the central axis of the filter cartridge 202. Preferably, as a preferred embodiment of the present utility model, the bending inclination angle ∠α of the first bend pipe in this embodiment is 30°.

[0034] A filter plate 206 is provided in the filter cartridge 202, and the filter plate 206 is provided at the rear of the filter cartridge 202. Specifically, the filter plate 206 is provided at the rear third of the filter cartridge 202. A plurality of fourth filter holes 2061 are provided on the filter plate 206. The filter plate 206 divides the inner cavity of the filter cartridge 202 into a front filtration chamber 207 and a rear filtration chamber 208.

[0035] A filter cavity is provided between the filter cartridge 202 and the outer shell 201 , a plurality of first filter holes 2071 are circumferentially provided on the wall of the filter front chamber 207 , a plurality of second filter holes 2081 are circumferentially provided on the wall of the filter rear chamber 208 , and the aperture of the second filter holes 2081 is larger than that of the first filter holes 2071 .

[0036] An intermediate support flange 209 is inserted into the outer side of the filter cartridge 202, and the intermediate support flange 209 is welded to the filter cartridge 202. The intermediate support flange 209 divides the filter cavity into cavity one 210 and cavity two 211. A plurality of third filter holes 2091 are provided on the intermediate support flange 209, and the aperture of the third filter hole 2091 is larger than the aperture of the first filter hole 2071.

[0037] The aperture of the first filter hole 2071 is 18-25 mm, the aperture of the second filter hole 2081 is 40-50 mm, the aperture of the third filter hole 2091 is 40-50 mm, and the aperture of the fourth filter hole 2061 is 18-25 mm. Specifically, as a preferred embodiment of the present invention, the aperture of the first filter hole 2071 is 18 mm, the aperture of the second filter hole 2081 is 40 mm, the aperture of the third filter hole 2091 is 40 mm, and the aperture of the fourth filter hole 2061 is 18 mm.

[0038] The inner diameters of the end support flange 203 and the middle support flange 209 are adapted to the outer diameter of the filter cartridge 202 , and the outer diameters of the end support flange 203 and the middle support flange 209 are smaller than the inner diameter of the housing 201 .

[0039] The outlet pipe 205 is mounted on the housing 201 through a rear end cover 212 . The diameter of the outlet pipe 205 is smaller than or equal to the diameter of the filter cartridge 202 .

[0040] The rear end cover 212 is hingedly connected to the housing 201 via a hinge mechanism 600 and secured via a housing flange 213 and fastening bolts 214. Specifically, the hinge mechanism 600 includes an ear plate 601, a connecting pin 602, and a hook plate 603. Two ear plates 601 and two hook plates 603 are provided, each welded to the housing 201 and welded to the rear end cover 212. The hook plates 603 are connected to the two ear plates 601 via the connecting pin 602. To enhance the strength of the ear plates 601 and hook plates 603, reinforcement plates are welded to each of the ear plates 601 and hook plates 603. Two sealing ring grooves are machined on the sealing surface between the housing flange 213 and the rear end cover 212. O-rings 215 are installed in these sealing ring grooves to seal the housing flange 213 and the rear end cover 212.

[0041] A boss is provided on the surface of the rear end cover 212 that contacts the housing 201 , and the diameter of the boss is smaller than the inner hole diameter of the housing flange 213 .

[0042] See also Figure 8A wet sludge tubular impurity removal component includes the above-mentioned wet sludge tubular impurity remover 200, and also includes a sludge feed pipe 100, a second bent pipe 300 and a sludge discharge pipe 400, one end of the sludge feed pipe 100 is connected to the pipeline of the high-pressure paste plunger pump outlet, the other end of the sludge feed pipe 100 is connected to the inlet pipe 204 of the wet sludge tubular impurity remover 200, one end of the second bent pipe 300 is connected to the outlet pipe 205 of the wet sludge tubular impurity remover 200, the other end of the second bent pipe 300 is connected to the sludge discharge pipe 400, and the outlet end of the sludge discharge pipe 400 is connected to the sludge disposal equipment. The wet sludge separated by the wet sludge tubular impurity removal component of the present invention flows out from the sludge discharge pipe 400 and is transported to the sludge disposal equipment for subsequent treatment.

[0043] The bending inclination angle of the second bend pipe 300 is 25°-35°, wherein the bending inclination angle of the second bend pipe 300 is the angle ∠β between the central axis of the bending section of the second bend pipe 300 and the central axis of the sludge discharge pipe 400. As a preferred embodiment of the present invention, the angle ∠β is 30°. The second bend pipe 300 is a seamless fluid steel pipe and is provided with a handle 301.

[0044] A gate valve 500 is provided at the connection between the sludge discharge pipe 400 and the second elbow 300. When there is a lot of debris stored in the wet sludge tubular impurity remover 200 and it is necessary to remove the debris in the filter cartridge 202 of the wet sludge tubular impurity remover 200, the gate valve 500 is closed to block the sludge backflow. After completing the energy isolation, the pipeline opening operation is performed. First, the second elbow 300 is removed, and then the fastening bolts 214 are removed. The rear end cover 212 is opened through the hinge mechanism 600, and the filter cartridge 202 is quickly and conveniently taken out to clean up the debris.

[0045] The sludge feed pipe 100 and the sludge discharge pipe 400 are respectively provided with a first pressure sensor 101 and a second pressure sensor 401 for detecting the sludge output pressure at the outlet of the high-pressure paste plunger pump and the outlet pressure of the wet sludge tubular impurity remover 200. When a certain amount of debris accumulates in the filter cartridge 202, the flow resistance of the sludge in the wet sludge tubular impurity remover 200 increases. By measuring the pressure difference Δp between the inlet and outlet and calculating the pressure difference, it can be determined whether the debris needs to be removed. Specifically, if the pressure difference exceeds Δp = 0.1 MPa, it indicates that there is a large amount of debris in the pipeline impurity remover. The rear end cover 212 can be opened to remove the debris from the filter cartridge 202 of the wet sludge tubular impurity remover 200.

[0046] The various components of the wet sludge tubular impurity removal assembly of the utility model are connected by high-pressure connecting flanges, which are easy to assemble and disassemble and have strong reliability. The overall pressure resistance is set to 20Mpa, which is fully capable of withstanding the high-pressure conveying force of sludge conveying.

[0047] The working process of the wet sludge tubular impurity removal component of the utility model is as follows:

[0048] Municipal sludge with a water content of 80% is discharged by a high-pressure paste plunger pump and then enters the filter cartridge 202 inside the housing 201 of the wet sludge tubular impurity remover 200 through the sludge feed pipe 100. The sludge is separated from the impurities by a plurality of first filter holes 2071 on the filter front chamber 207 of the filter cartridge 202, and the larger impurities are retained in the filter front chamber 207 of the filter cartridge 202; a portion of the sludge enters the cavity 1 chamber 210 and the cavity 2 chamber 211 formed between the housing 201 and the filter cartridge 202 respectively. The sludge in the cavity 1 chamber 210 is separated from the impurities by the intermediate support method. The third filter hole 2091 of the lantern 209 enters the second cavity chamber 211, and the sludge in the second cavity chamber 211 enters the post-filtration chamber 208 through the second filter hole 2081 on the post-filtration chamber 208; another part of the sludge directly enters the post-filtration chamber 208 through the multiple fourth filter holes 2061 on the filter plate 206 inside the filter cylinder 202; finally, the filtered sludge passes through the outlet pipe 205, the second bend pipe 300, the plug valve 500 and the sludge discharge pipe 400 on the rear end cover 212 in turn, and is transported to the sludge disposal equipment for harmless and resource-based disposal.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A wet sludge tubular impurity remover (200), characterized in that: The invention comprises a housing (201), wherein a filter cartridge (202) is installed in the housing (201), an inlet pipe (204) is provided at one end of the housing (201), and an outlet pipe (205) is provided at the other end of the housing (201), wherein the inlet pipe (204) is a straight pipe, and the outlet pipe (205) is a first curved pipe, wherein the bending angle of the first curved pipe is 25°-35°.

2. The wet sludge tubular impurity remover (200) according to claim 1, characterized in that: A filter plate (206) is provided in the filter cartridge (202), the filter plate (206) being arranged at the rear of the filter cartridge (202), a plurality of fourth filter holes (2061) being provided on the filter plate (206), and the filter plate (206) divides the inner cavity of the filter cartridge (202) into a front filtration chamber (207) and a rear filtration chamber (208).

3. The wet sludge tubular impurity remover (200) according to claim 2, characterized in that: A filter cavity is provided between the filter cartridge (202) and the housing (201); a plurality of first filter holes (2071) are circumferentially provided on the cartridge wall of the filter front chamber (207); a plurality of second filter holes (2081) are circumferentially provided on the cartridge wall of the filter rear chamber (208); the aperture of the second filter holes (2081) is larger than the aperture of the first filter holes (2071).

4. The wet sludge tubular impurity remover (200) according to claim 3, characterized in that: An intermediate support flange (209) is inserted on the outer side of the filter cartridge (202), and the intermediate support flange (209) divides the filter cavity into a first cavity chamber (210) and a second cavity chamber (211). The intermediate support flange (209) is provided with a plurality of third filter holes (2091), and the aperture of the third filter holes (2091) is larger than the aperture of the first filter hole (2071).

5. The wet sludge tubular impurity remover (200) according to claim 4, characterized in that: The aperture of the first filter hole (2071) is 18-25 mm, the aperture of the second filter hole (2081) is 40-50 mm, the aperture of the third filter hole (2091) is 40-50 mm, and the aperture of the fourth filter hole (2061) is 18-25 mm.

6. The wet sludge tubular impurity remover (200) according to claim 5, characterized in that: End support flanges (203) are respectively sleeved on the outer sides of both ends of the filter cartridge (202); the inner diameters of the end support flanges (203) and the intermediate support flange (209) are adapted to the outer diameter of the filter cartridge (202); and the outer diameters of the end support flanges (203) and the intermediate support flange (209) are smaller than the inner diameter of the outer shell (201).

7. The wet sludge tubular impurity remover (200) according to any one of claims 1 to 6, characterized in that: The outlet pipe (205) is mounted on the housing (201) via a rear end cover (212), and the diameter of the outlet pipe (205) is smaller than or equal to the diameter of the filter cartridge (202).

8. The wet sludge tubular impurity remover (200) according to claim 7, characterized in that: The rear end cover (212) is hinged to the housing (201) via a hinge mechanism (600) and fixed via a housing flange (213) and fastening bolts (214). A boss is provided on the surface of the rear end cover (212) in contact with the housing (201), and the diameter of the boss is smaller than the inner hole diameter of the housing flange (213).

9. A wet sludge tubular impurity removal assembly, characterized in that: The wet sludge tubular impurity remover (200) comprises the wet sludge tubular impurity remover (200) as described in any one of claims 1 to 8, and further comprises a sludge feed pipe (100), a second elbow pipe (300) and a sludge discharge pipe (400), wherein the sludge feed pipe (100) is connected to the inlet pipe (204) of the wet sludge tubular impurity remover (200), one end of the second elbow pipe (300) is connected to the outlet pipe (205) of the wet sludge tubular impurity remover (200), and the other end of the second elbow pipe (300) is connected to the sludge discharge pipe (400).

10. The wet sludge tubular impurity removal assembly according to claim 9, characterized in that: The bending inclination angle of the second curved pipe (300) is 25°-35°, a gate valve (500) is provided at the connection between the sludge discharge pipe (400) and the second curved pipe (300), and a first pressure sensor (101) and a second pressure sensor (401) are provided on the sludge feed pipe (100) and the sludge discharge pipe (400), respectively.

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