Sawtooth type sludge pulping device

Abstract

The utility model relates to a sawtooth type sludge pulping device which comprises a tank body, a sludge feeding port, a cleaning water feeding port, a pulpified sludge discharging port, a liquid level meter, a sawtooth type double-blade stirring paddle, a stirring shaft, a variable frequency motor, a vertical sawtooth blade and a transverse sawtooth blade, the upper edge and the lower edge of the sawtooth type double-blade stirring paddle are provided with sawtooth-shaped blades and are transversely and horizontally arranged at the opposite ends of the middle stirring shaft, the vertical sawtooth blades are perpendicularly arranged on the inner wall of the tank body, and the transverse sawtooth blades are arranged at the bottom of the tank body along the inner diameter. Compared with the prior art, the plate-and-frame sludge pulpifying device can crush and pulpify the sludge subjected to plate-and-frame pressure filtration in all directions without dead angles, the pulpifying effect is thorough, and no residue exists.

Description

TECHNICAL FIELD

[0001] The utility model relates to sludge treatment technical field especially is concerned with a zigzag sludge pulping device. BACKGROUND

[0002] Chemical manganese dioxide is prepared by the oxidation of divalent manganese salt or the reduction of permanganate, and a large amount of salt is contained in the mud cake after plate and frame filter pressing, so that the mud cake needs to be slurried and washed to improve its chemical purity. After plate and frame filter pressing (1.6 MPa of pressing pressure) of the chemical manganese dioxide, the moisture content is 37-46%, and the center of the mud cake presents a hard solid state, so that the conventional pulping equipment cannot completely crush and slurry the mud cake.

[0003] The patent CN213467503U discloses a comb-tooth type sludge pulping device, which comprises a reduction motor, a tank body, a static stirrer and a dynamic stirrer. The reduction motor is arranged at the top of the tank body, and the static stirrer and the dynamic stirrer are arranged inside the tank body. There is no contact between the static stirrer and the dynamic stirrer. The reduction motor is drivingly connected to the dynamic stirrer. The dynamic stirrer and the static stirrer are provided with a comb-tooth structure at the upper and lower ends. The dynamic stirrer is horizontally arranged at the opposite end of the middle stirring shaft. The dynamic stirrer is in the form of an angle iron. The angles of the dynamic stirrer are consistent. The comb-tooth type stirring device with dynamic and static combination can fully mix the waste tar and vinegar residue after being scattered with the biochemical sludge, increase the contact area of the tar particles and the microorganisms, and make the tar particles quickly decomposed into harmless substances under the biochemical action. The comb-tooth type sludge pulping device can also be applied to the pulping treatment of high-concentration sludge in other industries. However, the bottom and the inner wall of the device are smooth and have no friction. The dry sludge particles with the maximum weight are accumulated at the bottom, and the dry sludge particles with a slightly smaller weight are subjected to the centrifugal force and move along the inner wall in a circular manner, so that the static stirrer and the dynamic stirrer cannot completely crush and slurry the dry sludge particles.

[0004] Therefore, there is an urgent need for a sludge pulping device that can completely crush and slurry dry sludge particles. UTILITY MODEL CONTENTS

[0005] The utility model discloses a zigzag sludge pulping device that sets up the zigzag serrated blade of zigzag double-blade stirring paddle upper and lower edges, sets up the zigzag blade in tank body inner wall and bottom respectively, can all directions, no dead angle to the slurry of the sludge after plate and frame filter pressing is broken, and the slurry effect is complete, and there is no residue.

[0006] The purpose of the utility model can be realized through the following technical schemes:

[0007] The utility model discloses a zigzag sludge pulping device that sets up the zigzag serrated blade of zigzag double-blade stirring paddle upper and lower edges, sets up the zigzag blade in tank body inner wall and bottom respectively, can all directions, no dead angle to the slurry of the sludge after plate and frame filter pressing is broken, and the slurry effect is complete, and there is no residue.

[0008] The sawtooth double-blade stirring paddle is arranged in the tank body, and the upper edge and the lower edge of the sawtooth double-blade stirring paddle are arranged in the form of sawtooth blades;

[0009] The driving assembly is connected with the sawtooth double-blade stirring paddle.

[0010] The sawtooth blade assembly is arranged in the tank body and connected with the inner wall of the tank body.

[0011] Further, the tank body comprises a tank body main body and a top cover, and the detachable top cover is mounted on the tank body main body.

[0012] Further, the sawtooth blade assembly comprises one or more of vertical sawtooth blades and horizontal sawtooth blades.

[0013] Preferably, the sawtooth blade assembly comprises vertical sawtooth blades and horizontal sawtooth blades.

[0014] Further, the vertical sawtooth blades are vertically arranged on the inner side wall of the tank body.

[0015] Further, a plurality of vertical sawtooth blades are vertically arranged on the inner side wall of the tank body in the circumferential direction.

[0016] Further, the length of the vertical sawtooth blade is the same as the height of the inner side wall of the tank body main body.

[0017] Further, the horizontal sawtooth blade is horizontally arranged on the inner bottom surface of the tank body.

[0018] Further, the horizontal sawtooth blade is arranged along the inner diameter at the bottom of the tank body (the horizontal sawtooth blade extends from the center of the tank bottom to the tank wall in the radial direction).

[0019] Further, one end of the horizontal sawtooth blade extends to the inner side wall of the tank body, and the other end extends to the center of the bottom of the tank body, that is, the horizontal sawtooth blade is arranged in the radial direction of the tank body, and the length is the same as the radius of the inner bottom surface of the tank body.

[0020] Further, the height of the vertical sawtooth blade is 10-12 mm, and the blade tip is 35-40 degrees.

[0021] The height of the horizontal sawtooth blade is 10-12 mm, and the blade tip is 35-40 degrees.

[0022] Further, the width of the vertical sawtooth blade (9) and the horizontal sawtooth blade (10) is arranged to be 2-2.5 mm.

[0023] Further, the shape of the single tooth of the blade of the vertical sawtooth blade and the horizontal sawtooth blade can be a triangular prism.

[0024] Further, a stirring cavity is formed in the hollow middle part of the tank body, and the sawtooth double-blade stirring paddle is arranged in the stirring cavity.

[0025] Further, the driving assembly comprises a stirring shaft and a driving member.

[0026] The stirring shaft is connected with the sawtooth double-blade stirring paddle.

[0027] The driving member is connected with the stirring shaft, and the driving member is used to drive the stirring shaft to rotate, thereby driving the sawtooth double-blade stirring paddle to rotate.

[0028] Further, the driving member is a variable frequency motor, and the variable frequency motor is arranged at the center of the top of the tank body.

[0029] Further, the variable frequency motor comprises a motor body and an output shaft connected with the motor body.

[0030] Further, the variable frequency motor is arranged outside the top cover, and the stirring shaft is arranged inside the top cover and connected with the output shaft of the variable frequency motor.

[0031] Further, the sawtooth sludge pulping device further comprises a sludge feeding port and a cleaning water feeding port, and the sludge feeding port and the cleaning water feeding port are arranged on the two sides of the top of the tank body, respectively.

[0032] The sludge feeding port and the cleaning water feeding port are respectively communicated with the stirring cavity.

[0033] Further, the cleaning water feeding port is connected with a tap water supply device through a pipeline, and a switch valve is arranged on the pipeline between the cleaning water feeding port and the tap water supply device.

[0034] The sludge feeding port and the cleaning water feeding port are respectively communicated with the stirring cavity.

[0035] Further, the sawtooth sludge pulping device further comprises a liquid level meter.

[0036] The liquid level meter is arranged on the side wall of the tank body.

[0037] Further, the liquid level meter 5 is selected from one or more of a magnetic reed liquid level meter and a glass plate liquid level meter.

[0038] Further, the sawtooth double-blade stirring paddle is arranged horizontally.

[0039] Further, the sawtooth double-blade stirring paddle is arranged horizontally on the two sides of the middle stirring shaft. Alternatively, a plurality of sawtooth double-blade stirring paddles are arranged vertically, i.e., the plurality of sawtooth double-blade stirring paddles are arranged in parallel from top to bottom.

[0040] Optionally, the plurality of serrated double-blade stirring paddles are vertically staggered, that is, the plurality of serrated double-blade stirring paddles are not completely parallel from top to bottom.

[0041] Further, each serrated double-blade stirring paddle comprises two blades which are vertically at the same height and are connected to two sides of the stirring shaft respectively, and the two blades have the same length.

[0042] Further, the serrated double-blade stirring paddle has a blade height of 25-30 mm, a blade tip of 20-25 degrees, and a blade thickness of 2-2.5 mm.

[0043] Further, the serrated double-blade stirring paddle has a cylindrical body with a diameter of 20 mm between the upper and lower blades.

[0044] Further, the serrated double-blade stirring paddle has a single tooth shape of a triangular prism.

[0045] Further, the tank structure is a flat-bottomed cylinder.

[0046] Further, the plate-and-frame filter cake needs to be broken into a size of 20-50 mm in diameter and then is put into the tank through the sludge feeding port.

[0047] Further, the serrated sludge pulping device can be used for sludge pulping, and the sludge pulping process is divided into two stages, the frequency motor speed is controlled at 130-220 rpm in the first 30 minutes, and the frequency motor speed is controlled at 800-900 rpm in the last 30 minutes.

[0048] Compared with the prior art, the utility model has the following beneficial effects:

[0049] 1) The serrated sludge pulping device provided by the technical scheme has serrated blades on the upper and lower edges of the serrated double-blade stirring paddle, and the cutting force on the plate-and-frame filter cake is stronger and more sufficient than that of the traditional stirring paddle.

[0050] 2) The serrated sludge pulping device provided by the technical scheme is provided with serrated blades on the inner wall and the bottom of the tank, under the centrifugal force of the stirring paddle, the slightly heavy dry sludge particles are broken and pulped by the vertical serrated blades when doing circular motion along the inner wall of the tank, and the heaviest dry sludge particles are broken and pulped by the horizontal serrated blades when doing circular motion at the tank bottom.

[0051] 3) The serrated sludge pulping device provided by the technical scheme can break and pulp the sludge after plate-and-frame filtration in all directions and without any dead angle, the pulping effect is complete, and there is basically no any residue. BRIEF DESCRIPTION OF DRAWINGS

[0052] Figure 1 It is the structure schematic view of sawtooth sludge pulping device in the embodiment 1 of the utility model.

[0053] Figure 2 It is the left view schematic view of sawtooth double-blade stirring paddle in the embodiment 1 of the utility model.

[0054] Figure 3 It is the front view schematic view of sawtooth double-blade stirring paddle in the embodiment 1 of the utility model.

[0055] Figure 4 It is the shape schematic view of blade or vertical sawtooth blade or horizontal sawtooth blade of sawtooth double-blade stirring paddle in the embodiment 1 of the utility model (only two adjacent single teeth are shown). Marking in the drawing is explained as follows:

[0056] 1 - tank body, 2 - sludge feeding port, 3 - cleaning water feeding port, 4 - pulping sludge discharging port, 5 - liquid level meter, 6 - sawtooth double-blade stirring paddle, 7 - stirring shaft, 8 - frequency conversion motor, 9 - vertical sawtooth blade, 10 - horizontal sawtooth blade. DETAILED DESCRIPTION

[0057] The utility model will be explained in detail in combination with the drawings and specific embodiments. In the technical scheme, the components model, material name, connection structure, control method, algorithm and other features not explicitly explained are regarded as the common technical features disclosed in the prior art.

[0058] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relationship based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are used to describe common objects, and only indicate different instances of the same object, and do not imply that the objects thus described must be in a given order, whether in time, space, order or any other manner.

[0059] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0060] Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0061] The present invention will be further described in detail below with reference to specific embodiments.

[0062] Example 1

[0063] like Figure 1 As shown, this embodiment provides a sawtooth sludge pulping device, which includes a tank 1, a sludge feeding port 2, a washing water inlet 3, a pulped sludge outlet 4, a level gauge 5, a sawtooth double-blade agitator 6, an agitator shaft 7, a variable frequency motor 8, vertical sawtooth blades 9, and horizontal sawtooth blades 10.

[0064] The tank body 1 has a flat-bottomed cylindrical structure, and the stirring shaft 7 is arranged along the axis of the tank body 1.

[0065] The sludge feeding port 2 and the washing water inlet 3 are respectively located on the top sides of the tank body 1. The slurry sludge discharge port 4 is located below the side wall of the tank body 1. The level gauge 5 is located on the side wall of the tank body 1. The variable frequency motor 8 is located at the center of the top of the tank body 1. The variable frequency motor 8 drives the serrated double-blade agitator 6 through the stirring shaft 7. The serrated double-blade agitator 6 is located inside the tank body 1. The upper and lower edges of the serrated double-blade agitator 6 are set with serrated blades. The serrated double-blade agitator 6 is horizontally arranged on both sides of the central stirring shaft 7. The vertical serrated blade 9 is vertically arranged on the inner wall of the tank body 1. The horizontal serrated blade 10 is arranged along the inner diameter at the bottom of the tank body 1. The horizontal serrated blade 10 extends radially from the center of the bottom of the tank body 1 to the inner wall of the tank body 1. One end of the horizontal serrated blade 10 extends to the inner side wall of the tank body 1, and the other end extends to the center of the bottom of the tank body 1. That is, the horizontal serrated blade 10 is arranged radially along the tank body 1, and its length is the same as the radius of the inner bottom surface of the tank body 1.

[0066] The variable frequency motor 8 includes a motor body and an output shaft connected to the motor body.

[0067] The tank 1 includes a tank body and a top cover, and the tank body is equipped with a detachable top cover.

[0068] The main body of the variable frequency motor 8 is located on the outside of the top cover, and the output shaft of the variable frequency motor 8 passes through the top cover. The stirring shaft 7 is located on the inside of the top cover and is connected to the output shaft of the variable frequency motor. The middle of the tank body 1 is hollow to form a stirring chamber, and the sawtooth double-blade stirring paddle 6 is located in the stirring chamber.

[0069] The sludge feeding port 2 and the washing water inlet 3 are respectively located on the top sides of the main body of the tank 1 and are respectively connected to the mixing chamber.

[0070] The filter cake from the plate and frame filter press needs to be crushed to a diameter of 20-50mm before being fed into the tank 1 through the sludge feeding port 2.

[0071] The cleaning water inlet 3 is connected to a tap water supply device through a pipe to introduce tap water into the tank 1, and a switch valve is installed on the pipe between the cleaning water inlet 3 and the tap water supply device.

[0072] The sludge discharge port 4 is connected to a sludge pump via a pipeline to discharge the sludge from tank 1. A switch valve is installed on the pipeline between the sludge discharge port 4 and the sludge pump. The level gauge 5 is selected from either a magnetic float level gauge or a glass plate level gauge.

[0073] like Figure 2 , 3 As shown, the blade height of the serrated double-blade agitator 6 is set to 25-30mm, the blade tip angle is set to 20-25 degrees, the blade thickness is 2-2.5mm, and the portion between the upper and lower blades is a cylinder with a diameter of 20mm. Figure 4 As shown, the single tooth of the serrated blade of the serrated double-blade agitator 6 can be a triangular prism.

[0074] Multiple serrated double-blade agitators 6 are arranged vertically, that is, multiple serrated double-blade agitators 6 are arranged parallel from top to bottom. Each serrated double-blade agitator 6 includes two blades, the two blades are at the same vertical height, and are respectively connected to both sides of the agitator shaft 7, and the two blades are of the same length.

[0075] The height of both the vertical serrated blade 9 and the horizontal serrated blade 10 is set to 10-12mm, and the blade tip is set to 35-40 degrees.

[0076] The width of both the vertical serrated blade 9 and the horizontal serrated blade 10 is set to 2-2.5 mm.

[0077] like Figure 4 As shown, the shape of a single tooth of the vertical serrated blade 9 and the horizontal serrated blade 10 can be a triangular prism.

[0078] The sludge pulping process is divided into two stages, the frequency motor 8 is controlled at 130-220 rpm in the first 30 min, and the frequency motor 8 is controlled at 800-900 rpm in the last 30 min.

[0079] Hereinafter, the chemical manganese dioxide sludge cake with a moisture content of about 40% after pressure filtration (a pressing pressure of 1.6 MPa) in a plate-and-frame filter press is taken as the treatment object, and the device is used for crushing and pulping treatment of the sludge cake.

[0080] Example 2

[0081] In this embodiment, the zigzag sludge pulping device is used for crushing and pulping treatment of the treatment object.

[0082] The size of the feeding sludge cake of the sludge feeding port 2 is 50 mm in diameter.

[0083] On the basis of the zigzag sludge pulping device in Example 1, the specific parameter settings of the device are as follows: a glass plate liquid level meter is selected as the liquid level meter; the blade height of the zigzag double-blade stirring paddle is set to 30 mm, the blade tip is set to 25 degrees, and the blade thickness is 2 mm, and the part between the upper and lower blades is a cylinder with a diameter of 20 mm; the shape of the single tooth of the zigzag blade of the zigzag double-blade stirring paddle 6 can be a triangular prism; the height of the vertical zigzag blade 9 and the horizontal zigzag blade 10 is set to 12 mm, and the blade tip is set to 40 degrees; the width of the vertical zigzag blade 9 and the horizontal zigzag blade 10 is set to 2 mm; the sludge pulping process is divided into two stages, the frequency motor is controlled at 130 rpm in the first 30 min, and the frequency motor is controlled at 900 rpm in the last 30 min.

[0084] Example 3

[0085] In this embodiment, the zigzag sludge pulping device is used for crushing and pulping treatment of the treatment object.

[0086] The size of the feeding sludge cake of the sludge feeding port 2 is 20 mm in diameter.

[0087] On the basis of the zigzag sludge pulping device in Example 1, the specific parameter settings of the device are as follows: a magnetic float liquid level meter is selected as the liquid level meter; the blade height of the zigzag double-blade stirring paddle is set to 25 mm, the blade tip is set to 20 degrees, and the blade thickness is 2.4 mm, and the part between the upper and lower blades is a cylinder with a diameter of 20 mm; the shape of the single tooth of the zigzag blade of the zigzag double-blade stirring paddle 6 can be a triangular prism; the height of the vertical zigzag blade 9 and the horizontal zigzag blade 10 is set to 12 mm, and the blade tip is set to 40 degrees; the width of the vertical zigzag blade 9 and the horizontal zigzag blade 10 is set to 2.4 mm; the sludge pulping process is divided into two stages, the frequency motor is controlled at 220 rpm in the first 30 min, and the frequency motor is controlled at 800 rpm in the last 30 min.

[0088] The above description of the embodiments is to enable a person having ordinary skill in the art to understand and use the utility model. It is obvious that those skilled in the art can easily make various modifications to the embodiments and apply the general principles described herein to other embodiments without creative labor. Therefore, the utility model is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the protection scope of the utility model.

Claims

1. A sawtooth sludge beater characterized by, The sawtooth sludge pulping device comprises a tank body (1), a sawtooth double-blade stirring paddle (6), a driving assembly, and a sawtooth blade assembly. The sawtooth double-blade stirring paddle (6) is arranged in the tank body (1), and the upper edge and the lower edge of the sawtooth double-blade stirring paddle (6) are provided with sawtooth blades. The driving assembly is connected with the sawtooth double-blade stirring paddle (6). The sawtooth blade assembly is arranged in the tank body (1) and connected with the inner wall of the tank body (1).

2. A sawtooth sludge beater according to claim 1, characterized in that The sawtooth blade assembly comprises one or more of vertical sawtooth blades (9) and horizontal sawtooth blades (10). The vertical sawtooth blades (9) are vertically arranged on the inner side wall of the tank body (1). The horizontal sawtooth blades (10) are horizontally arranged on the inner bottom surface of the tank body (1).

3. A sawtooth sludge beater according to claim 2, wherein The height of the vertical sawtooth blades (9) is 10-12 mm, and the blade tip is 35-40 degrees. The height of the horizontal sawtooth blades (10) is 10-12 mm, and the blade tip is 35-40 degrees.

4. The sawtooth sludge beater according to claim 1, characterized in that, The driving assembly comprises a stirring shaft (7) and a driving member. The stirring shaft (7) is connected with the sawtooth double-blade stirring paddle (6). The driving member is connected with the stirring shaft (7) and used to drive the stirring shaft (7) to rotate, thereby driving the sawtooth double-blade stirring paddle (6) to rotate.

5. A sawtooth sludge beater according to claim 4, wherein The driving member is a variable frequency motor (8) arranged at the top center of the tank body (1).

6. The sawtooth sludge beater according to claim 1, wherein The sawtooth sludge pulping device further comprises a sludge feeding port (2) and a cleaning water feeding port (3). The sludge feeding port (2) and the cleaning water feeding port (3) are arranged on the two sides of the top of the tank body (1), respectively. The sawtooth sludge pulping device further comprises a pulped sludge discharging port (4). The pulped sludge discharging port (4) is arranged below the side wall of the tank body (1).

7. The sawtooth sludge beater according to claim 1, wherein The sawtooth sludge pulping device further comprises a liquid level meter (5). The liquid level meter (5) is arranged on the side wall of the tank body (1).

8. The sawtooth sludge beater according to claim 1, wherein The sawtooth double-blade stirring paddle (6) is horizontally arranged. Multiple sawtooth double-blade stirring paddles (6) are vertically arranged.

9. The sawtooth sludge beater according to claim 1, characterized in that, The height of the blade of the sawtooth double-blade stirring paddle (6) is 25-30 mm, the blade tip of the blade is 20-25 degrees, the thickness of the blade is 2-2.5 mm, and the part between the upper and lower blades is a cylinder with a diameter of 20 mm.

10. The sawtooth sludge beater according to claim 1, characterized in that, The tank body (1) has a structure of a flat-bottomed cylinder.

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