CN219558945U

CN219558945U - Mud scraping assembly for vacuum belt filter and vacuum belt filter

Info

Publication number: CN219558945U
Application number: CN202320120607.8U
Authority: CN
Inventors: 谢宴虹; 杨立树; 李威烨
Original assignee: Jiangxi 92 Salt Industry Co ltd
Current assignee: Jiangxi 92 Salt Industry Co ltd
Priority date: 2023-02-06
Filing date: 2023-02-06
Publication date: 2023-08-22
Anticipated expiration: 2033-02-06

Abstract

The utility model discloses a mud scraping assembly for a vacuum belt filter and the vacuum belt filter, comprising a scraper, a bearing seat, a rotating shaft, a tool apron, an adjusting rod and a pretightening force control member, wherein the scraper, the bearing seat, the rotating shaft, the tool apron, the adjusting rod and the pretightening force control member are arranged below a roller at a discharge end of the vacuum belt filter; wherein, the bearing seat is fixedly arranged on the frame of the vacuum belt filter; the two ends of the rotating shaft are rotatably connected with the bearing seat; one end of the tool apron is connected with the scraper, and the other end of the tool apron is fixedly connected with the rotating shaft; one end of the adjusting rod is fixedly connected with the rotating shaft to form a fixed end, and the other end of the adjusting rod extends outwards along the conveying direction of the vacuum belt filter to form a movable end; the pretightening force control piece is arranged at the movable end of the adjusting rod and is used for forming a rotating moment to press the movable end of the adjusting rod downwards. The utility model solves the problems that the scraper is easy to damage filter cloth or the scraper is not clean in the prior art.

Description

Mud scraping assembly for vacuum belt filter and vacuum belt filter

Technical Field

The utility model belongs to the technical field of filtering equipment, and particularly relates to a mud scraping assembly for a vacuum belt filter and the vacuum belt filter.

Background

In the alkali industry, the mud discharged in the process of preparing chlorine, hydrogen and caustic soda by using salt as a main raw material through an electrolysis method is called as salt mud. Typically, the brine sludge is backfilled or reused after removal of water by filtration. Vacuum belt filters are a common device for filtering the moisture of salty mud. Currently, as shown in fig. 1 to 3, most of the mud scraping assemblies on the vacuum belt filter generally adopt a structure that a scraper is fixed on a cutter holder, and then the cutter holder is installed on an equipment bracket; during installation, the nylon scraper needs to be close to the filter cloth below the discharge end of the roller, and a certain gap is reserved, so that a filter cloth interface can pass through conveniently. However, the mud scraping assembly is simple in structure, and because the scraper is fixedly installed, the mud scraping assembly does not have an automatic adjusting function, a filter cloth interface is easy to damage if the scraper is too close to the filter cloth, and the mud scraping effect is poor if the scraper is too far away from the filter cloth.

Disclosure of Invention

Aiming at the problems, the utility model aims to provide a mud scraping assembly for a vacuum belt filter and the vacuum belt filter, which solve the problems that a scraper is easy to damage filter cloth or mud scraping is not clean in the prior art.

The utility model is realized by the following technical scheme.

In one aspect, the utility model provides a mud scraping assembly for a vacuum belt filter, comprising a scraper arranged below a discharge end roller of the vacuum belt filter, characterized by further comprising:

the bearing seat is fixedly arranged on the frame of the vacuum belt filter;

the two ends of the rotating shaft are rotatably connected with the bearing seat;

the cutter seat, one end of the cutter seat is connected with the scraper, and the other end of the cutter seat is fixedly connected with the rotating shaft;

one end of the adjusting rod is fixedly connected with the rotating shaft to form a fixed end, and the other end of the adjusting rod extends outwards along the conveying direction of the vacuum belt filter to form a movable end; the method comprises the steps of,

the pretightening force control piece is arranged at the movable end of the adjusting rod and used for forming a rotating moment to press the movable end of the adjusting rod downwards.

As a specific technical scheme, the scraper is a nylon blade, and the edge of the scraper, which is close to the lower part of the roller, is an inclined plane.

As a specific technical scheme, the scraper is provided with a slotted hole, and the tool apron is connected with the slotted hole on the scraper through a bolt, so that the extension length of the scraper can be adjusted.

As a specific technical scheme, the pretightening force control member is a counterweight or an extension spring.

As a specific technical scheme, the movable end of the adjusting rod is provided with a round hole for hanging a counterweight or connecting an extension spring.

As a specific technical scheme, the number of the adjusting rods is two, and the adjusting rods are respectively arranged at two ends of the rotating shaft.

As a specific technical scheme, the tool apron is made of stainless steel angle steel, the rotating shaft is formed by turning round steel, and the bearing seat is a P206 bearing seat.

In another aspect, the utility model provides a vacuum belt filter featuring a mud scraping assembly as defined in any one of the preceding claims.

Compared with the prior art, the utility model has the beneficial effects that:

1) According to the utility model, the bearing seat, the rotating shaft, the adjusting rod and the pretightening force control member are arranged, so that the scraper can automatically let the scraper when encountering the filter cloth interface, the mud scraping effect is effectively ensured, and the filter cloth interface is not damaged.

2) The utility model has simple structure, can be applied to cleaning and collecting the filter cloth salt mud on the vacuum belt filter, can improve the production efficiency, reduce the labor cost and reduce the environmental pollution.

Drawings

FIG. 1 is a front view of a prior art mud scraping assembly;

FIG. 2 is a right side view of a prior art mud scraping assembly;

FIG. 3 is an enlarged schematic view of a part of the structure of FIG. 1;

FIG. 4 is a front view of the mud scraping assembly of the present utility model;

FIG. 5 is a right side view of the mud scraping assembly of the present utility model;

FIG. 6 is an enlarged schematic view of the partial structure of FIG. 4;

FIG. 7 is a schematic view of the mud scraping assembly of the present utility model in operation;

the meaning of each mark in the above figures is: the scraper 1, the bearing seat 2, the frame 3, the rotating shaft 4, the tool apron 5, the adjusting rod 6, the pretightening force control piece 7, the slotted hole 8, the filter cloth 9, the roller 10, the frame 11 and the filter cloth interface 12.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example 1

Referring to fig. 4 to 6, the mud scraping assembly for the vacuum belt filter comprises a scraper 1, a bearing seat 2, a rotating shaft 4, a cutter seat 5, an adjusting rod 6 and a pretightening force control member 7, wherein the scraper 1 is arranged below a roller of a discharge end of the vacuum belt filter; wherein, the bearing seat 2 is fixedly arranged on a frame 3 of the vacuum belt filter; two ends of the rotating shaft 4 are rotatably connected with the bearing seat 2; one end of the tool apron 5 is connected with the scraper 1, and the other end of the tool apron is fixedly connected with the rotating shaft 4; one end of the adjusting rod 6 is fixedly connected with the rotating shaft 4 to form a fixed end, and the other end of the adjusting rod extends outwards along the conveying direction of the vacuum belt filter to form a movable end; the pretightening force control member 7 is arranged at the movable end of the adjusting rod 6, and is used for forming a rotation moment to press the movable end of the adjusting rod 6 downwards.

Further, in a preferred embodiment, the scraper 1 is a nylon blade, and the nylon blade can reduce the abrasion effect of the scraper on the filter cloth when contacting the filter cloth; the scraper 1 is inclined near the edge of the lower part of the roller, and the edge of the scraper contacts with the filter cloth through the inclined edge, so that the edge can be prevented from cutting the interface of the filter cloth to damage the filter cloth.

Further, in a preferred embodiment, the doctor blade 1 is provided with a slot 8, and the blade holder 5 is connected to the slot 8 on the doctor blade 1 by a bolt, so that the extension length of the doctor blade 1 can be adjusted, so that the doctor blade 1 maintains a proper working length and angle during working.

Further, in a preferred embodiment, the pretension control 7 is a counterweight or a tension spring.

Further, in a preferred embodiment, the movable end of the adjusting rod 6 is provided with a circular hole for hanging a counterweight or connecting a tension spring.

Further, in a preferred embodiment, the two adjusting rods 6 are respectively disposed at both ends of the rotation shaft 4.

Further, in a preferred embodiment, the tool holder 5 is made of stainless steel angle, the rotating shaft 4 is made of round steel by turning, and the bearing seat 2 is a P206 bearing with a seat.

The installation method of the utility model is as follows: as shown in fig. 4 to 6, in the first step, the doctor blade 1 is fixed to the blade holder 5 by a bolt, and when the doctor blade 1 is worn, the bolt is screwed, and the blade extension is adjusted by the slot 8 formed in the doctor blade 1. In a second step, the holder 5 is fixed to the rotary shaft 4. And thirdly, installing the bearing seat 2 on a bearing position of the rotating shaft 4, fixing the bearing seat 4 on a frame below a mud outlet roller of the vacuum belt filter, and enabling the scraper 1 to be clung to the lower part of the roller. Fourth, the adjusting rod 6 is installed at both ends of the rotation shaft and is locked to the rotation shaft 4 by locking screws. And fifthly, as shown in fig. 2, adjusting the extension length of the scraper 1 and the rotation angle of the rotation shaft to enable the edge inclined surface of the scraper to be clung to the filter cloth outwards, and enabling the scraper to incline at an angle of about 30 degrees towards the advancing direction of the filter cloth. And sixthly, installing a pretightening force control piece 7 at the movable end of the adjusting rod 6, wherein a counterweight hanging mode or a tension spring installing mode can be adopted to form a rotation moment to press down the movable end of the adjusting rod 6, so that the nylon scraper 1 is tightly attached to the filter cloth.

The working principle of the utility model is as follows: when the mud scraping assembly works, referring to fig. 7, a pretightening force control piece 7 arranged on an adjusting rod 6 generates a certain torque to enable a scraper 1 to be tightly attached to filter cloth below a roller, so that salt mud adhered to the filter cloth can be scraped off; because the filter cloth interface 12 is thicker than the filter cloth, when the filter cloth interface 12 passes through the scraper 1, the advancing direction of the interface is consistent with the cutter yielding direction, and when the resistance torque generated by the interface and the scraper is larger than the tightening torque generated by the counterweight production, the scraper rotates around the rotating shaft 4, so that the gap between the scraper 1 and the filter cloth is increased, cutter yielding effect is generated, the interface can be prevented from being blocked on the scraper, and the filter cloth is prevented from being torn and damaged, so that the filter cloth interface is protected; after the interface passes through the scraper position, the scraper returns under the action of torque generated by the pretightening force control piece, so that the salt mud on the filter cloth can be continuously scraped.

Example 2

Referring to fig. 4 to 6, a vacuum belt filter comprises a frame 11, a filter cloth 9, a roller 10 and a scraper assembly; the doctor assembly includes: the scraper 1, the bearing seat 2, the rotating shaft 4, the tool apron 5, the adjusting rod 6 and the pretightening force control piece 7 are arranged below the roller at the discharging end of the vacuum belt filter; wherein, the bearing seat 2 is fixedly arranged on a frame 3 of the vacuum belt filter; two ends of the rotating shaft 4 are rotatably connected with the bearing seat 2; one end of the tool apron 5 is connected with the scraper 1, and the other end of the tool apron is fixedly connected with the rotating shaft 4; one end of the adjusting rod 6 is fixedly connected with the rotating shaft 4 to form a fixed end, and the other end of the adjusting rod extends outwards along the conveying direction of the vacuum belt filter to form a movable end; the pretightening force control member 7 is arranged at the movable end of the adjusting rod 6, and is used for forming a rotation moment to press the movable end of the adjusting rod 6 downwards.

Claims

1. A scrape mud subassembly for vacuum belt filter, including setting up scraper (1) below vacuum belt filter discharge end roller, its characterized in that still includes:

the bearing seat (2) is fixedly arranged on a frame (3) of the vacuum belt filter;

the two ends of the rotating shaft (4) are rotatably connected with the bearing seat (2);

the scraper seat (5), one end of the scraper seat (5) is connected with the scraper (1), and the other end of the scraper seat is fixedly connected with the rotating shaft (4);

one end of the adjusting rod (6) is fixedly connected with the rotating shaft (4) to form a fixed end, and the other end of the adjusting rod (6) extends outwards along the conveying direction of the vacuum belt filter to form a movable end; the method comprises the steps of,

the pretightening force control piece (7), the pretightening force control piece (7) is arranged at the movable end of the adjusting rod (6) and used for forming a rotating moment to press the movable end of the adjusting rod (6) downwards.

2. A mud scraping assembly for a vacuum belt filter as claimed in claim 1, wherein the scraper (1) is a nylon blade, the edge of the scraper (1) being inclined adjacent to the underside of the drum.

3. A mud scraping assembly for a vacuum belt filter as claimed in claim 1, characterized in that the scraper (1) is provided with a slot (8), the blade holder (5) being connected to the slot (8) of the scraper (1) by means of a bolt, so that the extension of the scraper (1) is adjustable.

4. A mud scraping assembly for a vacuum belt filter according to claim 1, characterized in that the pretension control (7) is a counterweight or an extension spring.

5. A mud scraping assembly for a vacuum belt filter as claimed in claim 4, characterized in that the movable end of the adjusting rod (6) is provided with a circular hole for hanging a counterweight or connecting a tension spring.

6. A mud scraping assembly for a vacuum belt filter according to claim 1, characterized in that the number of the adjusting rods (6) is two, which are arranged at both ends of the rotation shaft (4), respectively.

7. A mud scraping assembly for a vacuum belt filter according to claim 1, characterized in that the blade holder (5) is made of stainless steel angle iron, the rotary shaft (4) is made of round steel by turning, and the bearing seat (2) is a P206 belt seat bearing.

8. A vacuum belt filter, characterized by a mud scraping assembly as claimed in any one of claims 1 to 7.