A new high pressure extruder

Abstract

The utility model discloses a novel high pressure extruder is provided with cutting off drive motor on the support frame, and the rear side of cutting off drive motor is provided with extrusion bin, and the bottom of extrusion bin is provided with extrusion forming hole, and the inside of extrusion bin is provided with rotating frame, and rotating frame is provided with rotary scraper, and rotary scraper contacts to the inner wall of extrusion bin, the upper portion of extrusion bin is connected with high pressure feeding bin, and the inside of high pressure feeding bin is provided with pusher auger, the upper portion of high pressure feeding bin is provided with even material bin, even material bin is provided with even material auger in, and the lower portion of even material bin is provided with extrusion feeding mouth, the utility model discloses being provided with rotary scraper on rotating frame, and the high -speed rotation of rotary scraper can prevent sludge sticking on the inner wall, can also prevent extrusion forming hole from blocking simultaneously and extrudes sludge in extrusion forming hole under centrifugal thrust and extrudes out, especially to the sludge with hair, small stone has better treatment effect, the utility model discloses still being equipped with openable overhaul mouth, and the overhaul and the removal of sundries are convenient.

Description

Technical Field

[0001] This utility model belongs to the field of sludge drying machinery technology, specifically relating to a new type of high-pressure extruder. Background Technology

[0002] In the existing field of sludge dewatering, the most common equipment for achieving solid-liquid separation is sludge extrusion equipment. For example, the strip sludge extruder with publication number CN118125680B is a reference. When this type of machine is running, the sludge is pushed into the extrusion chamber by a rotating auger, and the sludge is formed into strips under the rotation of the auger.

[0003] The disadvantages of the aforementioned equipment during operation are as follows: 1. When the sludge is extruded and molded, the output is a long strip structure, which is not conducive to drying, resulting in low drying efficiency; 2. Existing equipment has requirements on the viscosity of the sludge. If the sludge viscosity is too high when the material is fed without pressure, it will make it difficult for the sludge to fall, affecting the molding efficiency at the molding end; 3. When the existing sludge is molded, the stirring force of the auger is mainly concentrated in the axial direction, and the radial extrusion force is insufficient. When the sludge outlet is blocked, the unblocking effect is poor.

[0004] In view of the shortcomings of the existing technology, based on market feedback, it is necessary for technical developers in this field to design a new type of high-pressure extruder that can achieve radial high-speed sludge extrusion. It can provide high pressure in both the feeding and forming stages. When extruding and cutting in the forming chamber, the sludge discharge efficiency can be adjusted according to the rotation speed to avoid the sludge strips being too long and affecting the forming and drying efficiency. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this patent application discloses a novel high-pressure extrusion machine. This device adopts a pressing feeding method and a rotating cutter for crushing. It can supply sludge under pressure and achieve radial cutting through a high-speed rotating cutter. Under the combined effect of centrifugal force and thrust, the cut sludge strips are squeezed to the outside, which can improve cutting efficiency.

[0006] To achieve the above technical objectives, the present invention adopts the following specific solution: a novel high-pressure extrusion machine, comprising a support frame, a cutting drive motor mounted on the support frame, an extrusion chamber mounted on the rear side of the cutting drive motor, an extrusion forming hole penetrating through the bottom of the extrusion chamber, a rotating frame mounted inside the extrusion chamber, a rotating scraper mounted on the rotating frame, the rotating scraper contacting the inner wall of the extrusion chamber; the upper part of the extrusion chamber is connected to a high-pressure feeding chamber, a pushing auger mounted inside the high-pressure feeding chamber; a material equalization chamber is mounted above the high-pressure feeding chamber, a material equalization auger is mounted inside the material equalization chamber, and an extrusion feeding port is mounted at the lower part of the material equalization chamber.

[0007] The lower part of the material equalization silo is provided with an arc-shaped constriction structure. The cross-section of the extrusion feeding port is reduced by the arc-shaped constriction structure, which can realize the extrusion feeding of the material equalization silo. When the material enters the high-pressure feeding silo, it has a certain feeding speed. This initial speed can improve the feeding efficiency.

[0008] The high-pressure feeding chambers are arranged in multiple rows, each equipped with a pushing auger; the multiple high-pressure feeding chambers are interconnected. This structure can evenly push sludge material into various areas inside the extrusion chamber.

[0009] The high-pressure feeding hopper is equipped with a lower support frame at its bottom end. The lower support frame is equipped with several material blocking branches and a central sleeve. The material blocking branches are used to disperse and divert the material at the end, preventing sludge from flowing in and causing an instantaneous impact on the rotating frame.

[0010] The rotating frame includes an outer axial plate and a radial plate. The radial plate is connected to the drive shaft, and a material passage hole is provided between the axial plate and the drive shaft. A scraper is fixed to the outer periphery of the axial plate, and the top of the scraper contacts the inner wall of the extrusion chamber.

[0011] The lower part of the extrusion chamber is provided with a receiving chamber, which has an opening at the bottom to guide the material falling from the extrusion forming hole outward.

[0012] The side of the extrusion chamber is provided with a quick-release cover. The rotating frame and rotating scraper can be exposed by removing the quick-release cover, thereby enabling internal cleaning.

[0013] The beneficial effects of this utility model are as follows: This utility model discloses a novel high-pressure extrusion machine, which has a cutting drive motor installed on a support frame, an extrusion chamber installed behind the cutting drive motor, an extrusion forming hole through the bottom of the extrusion chamber, a rotating frame installed inside the extrusion chamber, a rotating scraper installed on the rotating frame, and the rotating scraper contacting the inner wall of the extrusion chamber; the upper part of the extrusion chamber is connected to a high-pressure feeding chamber, and a pushing auger is installed inside the high-pressure feeding chamber; a material equalization chamber is installed above the high-pressure feeding chamber, a material equalization auger is installed inside the material equalization chamber, and an extrusion feeding port is installed at the lower part of the material equalization chamber.

[0014] With the above structural design, a rotating scraper is provided on the rotating frame. The high-speed rotation of the rotating scraper can prevent sludge from sticking to the inner wall, and at the same time, it can prevent the extrusion molding hole from being blocked and squeeze out the sludge in the extrusion molding hole under centrifugal thrust. It has a better treatment effect, especially for sludge containing hair and small stones. This utility model also has an openable inspection port for easy maintenance and removal of debris. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front three-dimensional structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 3 This is a side view of the structure of this utility model;

[0018] Figure 4 This is a top view of the structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the present utility model from the front view.

[0020] Figure 6 This is a side view of the internal structure of this utility model;

[0021] In the attached diagram, 1 is the support frame, 2 is the cutting drive motor, 20 is the extrusion chamber, 201 is the extrusion forming hole, 202 is the receiving chamber, 203 is the quick-release cover, 21 is the cutting gearbox, 22 is the drive seat, 23 is the fixed seat, 24 is the rotating frame, 240 is the axial plate, 241 is the radial plate, 242 is the material passage hole, 243 is the drive shaft, 25 is the coupling, 26 is the axial clearance, 27 is the rotating scraper, 3 is the high-pressure feeding chamber, 30 is the lower support frame, 31 is the material blocking branch, 32 is the central sleeve, 33 is the flow divider, 34 is the material pushing auger, 4 is the material equalization chamber, 41 is the material equalization drive motor, 42 is the material equalization gearbox, 43 is the mixing auger, 44 is the extrusion feeding port, 45 is the closing arc plate; 5 is the material pushing drive motor, 51 is the material pushing gearbox, and 52 is the material pushing drive unit. Detailed Implementation

[0022] The present invention will be described in detail below through specific embodiments. However, it should be noted that the specific embodiments described below do not limit the technical solution. Those skilled in the art can make further technical extensions under the guidance of the specific technical solutions described below.

[0023] Example 1:

[0024] A new type of high-pressure extrusion machine, such as Figure 1 As shown, it includes a support frame 1, on which a cutting drive motor 2 is mounted. The lower part of the cutting drive motor 2 is connected to a cutting gearbox 21. A drive shaft 243 extends from the cutting gearbox 21 into the extrusion chamber 20. The extrusion chamber 20 is supported by fixed seats 23 at both ends. The drive shaft 243 drives the rotation of the rotating frame 24 inside the extrusion chamber 20 via a coupling 25 and a drive seat 22. An extrusion forming hole 201 is provided through the bottom of the extrusion chamber 20. The rotating frame 24 is located inside the extrusion chamber 20, and a rotating scraper 27 is mounted on the rotating frame 24, contacting the inner wall of the extrusion chamber 20.

[0025] The upper part of the extrusion chamber 20 is connected to the high-pressure feeding chamber 3, which is equipped with a pushing auger 34. A material equalization chamber 4 is located above the high-pressure feeding chamber 3, and a material equalization auger 43 is installed inside the material equalization chamber 4. An extrusion feeding port 44 is located at the lower part of the material equalization chamber 4. Furthermore, the lower part of the material equalization chamber 4 is equipped with front and rear constriction arc plates 45 to form an arc-shaped constriction structure. This arc-shaped constriction structure reduces the cross-section of the extrusion feeding port, enabling extrusion feeding from the material equalization chamber. In actual use, the extruder has certain requirements regarding the moisture content of the sludge. Excessively high or low moisture content will affect the processing effect of the extruder. Therefore, before the sludge enters the extrusion chamber 20, the moisture content of the sludge can be manually adjusted. The mixing is adjusted according to the moisture content of the sludge to ensure continuous sludge discharge and molding effect.

[0026] Furthermore, the high-pressure feeding chambers 3 are arranged in multiples side by side, and each high-pressure feeding chamber 3 is equipped with a pushing auger 34; the multiple high-pressure feeding chambers 3 are connected to form a high-pressure feeding zone. Figure 5 As shown, the bottom of the high-pressure feeding hopper 3 is provided with a lower support frame 30. The lower support frame 30 is provided with several material blocking branches 31 and a central sleeve 32. The material blocking branches 31 are used to disperse and divert the material at the end, so as to avoid the sludge from causing an instantaneous impact on the rotating frame 24 when it flows in in a concentrated manner, which would affect the stability of the rotating frame 24 after long-term use.

[0027] With the above specific structural settings, when this device is in use, the external sludge is first poured into the equalization bin 4 for equalization and mixing. In order to improve the mixing efficiency, the equalization auger 43 set in the equalization bin 4 adopts a symmetrical spiral structure, which can realize the material extrusion and conveying from both ends to the middle or from the middle to both ends of the equalization bin 4. During the lateral movement of the sludge material, the humidity or viscosity can be adjusted to meet the needs of subsequent drying operations.

[0028] After being stirred, the sludge enters the high-pressure feeding chamber 3. Under the strong downward push of the auger 34, the sludge is fed into the extrusion chamber 20. During the extrusion and pushing process, the sludge is blocked and diverted a second time by the baffle branch 31. After multiple stirrings and collisions, the sludge is kept in a uniformly mixed state.

[0029] This device also further designs the structure of the rotating frame 24, such as... Figure 5As shown, the rotating frame 24 includes an outer axial plate 240 and a radial plate 241. The radial plate 241 is connected to the drive shaft 243, and a feed hole 242 is provided between the axial plate 240 and the drive shaft 243. A rotating scraper 27 is fixed to the periphery of the axial plate 240, and the top of the rotating scraper 27 contacts the inner wall of the extrusion chamber 20. After the drive shaft 243 is subjected to high-speed rotation, the axial plate 240 and the radial plate 241 are driven to rotate at high speed through the drive shaft 243. The sludge then moves as a whole through the feed hole 242, and the material in the extrusion forming hole 201 is extruded to the outside only on the inner wall of the extrusion chamber 20 by the rotating scraper 27. The sludge material is subjected to relatively frequent radial thrust and shearing, forming relatively fine granular material at the bottom of the extrusion forming hole 201.

[0030] Furthermore, the device also has a receiving chamber 202 at the bottom of the extrusion chamber 20. The receiving chamber 202 has an opening at the bottom, which guides the material falling from the extrusion forming hole 201 outward, so as to prevent the sludge from becoming messy at the bottom of the extrusion chamber 20.

[0031] Furthermore, the device is also equipped with a quick-release cover 203 on the side of the extrusion chamber 20. By removing the quick-release cover 203, the rotating frame 24 and the rotating scraper 27 can be exposed, thereby opening up the internal cleaning view.

[0032] In summary, this utility model discloses a novel high-pressure extruder, which uses a rotating scraper 27 mounted on a rotating frame 24 to rotate at high speed. This prevents sludge from adhering to the inner wall of the extrusion chamber 20, and also prevents the extrusion forming holes from becoming clogged. Furthermore, it allows the sludge to be squeezed out of the extrusion forming holes under centrifugal thrust, providing particularly effective treatment for sludge containing hair or small stones. This utility model also features an openable quick-release cover 203 as an inspection port for convenient maintenance and debris removal. This utility model overcomes the shortcomings of existing technologies and represents an ideal new type of high-pressure extruder.

Claims

1. A novel high-pressure extrusion machine, characterized in that: It includes a support frame, on which a cutting drive motor is mounted. An extrusion chamber is located behind the cutting drive motor. An extrusion forming hole is provided through the bottom of the extrusion chamber. A rotating frame is located inside the extrusion chamber, and a rotating scraper is mounted on the rotating frame, contacting the inner wall of the extrusion chamber. The upper part of the extrusion chamber is connected to a high-pressure feeding chamber, which is equipped with a pushing auger. A material equalization chamber is located above the high-pressure feeding chamber, containing a material equalization auger. An extrusion feeding port is located at the lower part of the material equalization chamber.

2. The novel high-pressure extruder as described in claim 1, characterized in that: The lower part of the material distribution hopper is provided with an arc-shaped tapering structure, which reduces the cross-section of the extrusion feed port.

3. The novel high-pressure extruder as described in claim 1, characterized in that: The high-pressure feeding bins are arranged in multiple rows, and each high-pressure feeding bin is equipped with a pusher auger; the multiple high-pressure feeding bins are connected to each other.

4. The novel high-pressure extruder as described in claim 1, characterized in that: The high-pressure feeding hopper is equipped with a lower support frame at its bottom end. The lower support frame is equipped with several material blocking branches and a central sleeve. The material blocking branches are used to disperse and divert the material at the end, preventing sludge from flowing in and causing an instantaneous impact on the rotating frame.

5. The novel high-pressure extruder as described in claim 1, characterized in that: The rotating frame includes an outer axial plate and a radial plate. The radial plate is connected to the drive shaft, and a material passage hole is provided between the axial plate and the drive shaft. A scraper is fixed to the outer periphery of the axial plate, and the top of the scraper contacts the inner wall of the extrusion chamber.

6. The novel high-pressure extruder as described in claim 1, characterized in that: The lower part of the extrusion chamber is provided with a receiving chamber, which has an opening at the bottom to guide the material falling from the extrusion forming hole outward.

7. The novel high-pressure extruder as described in claim 1, characterized in that: The side of the extrusion chamber is provided with a quick-release cover, which can be removed to expose the rotating frame and rotating scraper.

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