Vertical centrifugal machine

Abstract

The utility model discloses a vertical centrifugal machine which comprises a tank body, a rotary drum rotationally connected to the interior of the tank body, a machine cover movably installed on the top of the tank body, a column type scraper base rotationally installed on the machine cover, a scraper installed on the surface of a lifting rod vertically and movably connected to the column type scraper base, and a backwashing pipe arranged between the tank body and the rotary drum. And two groups of nozzles are arranged on the backwashing pipe. The backwashing pipe is connected with an air pump or a water pump, gas backwashing or liquid backwashing can be selected according to requirements, and different requirements can be met; when the rotary drum is connected with the air pump, the form and the property of solids in the rotary drum are not influenced by gas washing, and solid separation and backwashing are performed simultaneously, so that the efficiency is improved; the backwashing pipe is connected with the two groups of nozzles to generate a washing area which covers the position vertical to the surface of the rotary drum, so that the passing rate of backwashing gas or liquid vertically entering the rotary drum is greatly increased, and the washing force and the washing effect are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal devices, in particular to a vertical centrifuge. Background Art

[0002] In the chemical production process, centrifuges are often used for solid-liquid separation. Common centrifuges are divided into vertical centrifuges and horizontal centrifuges, and the working principles of the two are the same.

[0003] Vertical flat scraper bottom discharge centrifuge is a type of vertical centrifuge. The material is added to the drum inside the vertical centrifuge. The drum has dense mesh holes. The liquid is separated out through the high-speed rotation of the internal drum, leaving the solid in the drum. The existing centrifuge has comprehensive functions. It can not only disperse the material through the spreading plate when adding the material, but also separate the solid attached to the inner wall of the drum through the scraper after separating the liquid. It can also spray water or liquid corresponding to the solid through the backwash pipe and nozzle outside the drum to backwash the drum. It is powerful and is a boon for factory production and processing.

[0004] During the backwashing process of the vertical centrifuge, the drum rotates. In the prior art, the flushing direction of the backwash pipe is perpendicular to the drum surface. When the drum rotates, the liquid flushing cannot pass vertically through the dense mesh of the drum, but enters the drum in an inclined direction and is blocked by the non-dense mesh part of the drum surface, resulting in a significant decrease in the passing rate of the backwashing liquid, affecting the backwashing effect. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a vertical centrifuge for solving the problem that the flushing angle of the backwash pipe of the existing vertical flat scraper bottom discharge centrifuge is perpendicular to the drum surface, resulting in a significant decrease in the passing rate of the backwash liquid when the drum rotates, affecting the backwash effect.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A vertical centrifuge comprises a tank body, a drum rotatably connected inside the tank body, a machine cover movably mounted on the top of the tank body, a columnar scraper seat rotatably mounted on the machine cover, a scraper mounted on the surface of a lifting rod vertically movably connected to the columnar scraper seat, and a backwash pipe arranged between the tank body and the drum, the backwash pipe is provided with a nozzle, the backwash pipe is provided with two groups of nozzles, the nozzles are equidistantly arranged along the surface of the vertically arranged backwash pipe, the backwash pipe corresponds to the position of the lifting rod and the scraper, one of the two groups of nozzles corresponds to the position of the lifting rod and the scraper, and the other group of nozzles points to the position of the drum surface corresponding to the front of the scraper.

[0008] Preferably, there are two scrapers parallel to each other, and the distance between the two scrapers is half the height of the drum.

[0009] Preferably, the distance between the end of the scraper and the lifting rod is equal to the distance between the lifting rod and the inner wall of the drum.

[0010] Preferably, a push rod is hinged on the machine cover, and the push rod is hinged to the column scraper seat through a connecting rod.

[0011] Preferably, the backwash pipe is connected to an air pump or a water pump.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The backwashing pipe of the utility model is connected to an air pump or a water pump, and gas backwashing or liquid backwashing can be selected according to needs to meet different needs; when connected to the air pump, the gas flushing does not affect the shape and properties of the solids in the drum, and the solids are separated and backwashing are performed at the same time, and the two steps do not interfere with each other, thereby improving efficiency; the backwashing pipe is connected to two groups of nozzles, one of which is directly corresponding to the position of the lifting rod and the scraper, and the other group of nozzles is directed to the position of the drum surface corresponding to the front of the scraper, so that the backwashing produces a flushing area, covering the position perpendicular to the drum surface, greatly increasing the passing rate of the backwashing gas or liquid entering the drum vertically, improving the flushing strength and flushing effect, and solving the problem that the flushing angle of the backwashing pipe of the existing vertical flat scraper bottom discharge centrifuge is perpendicular to the drum surface, resulting in a significant decrease in the passing rate of the backwashing liquid when the drum rotates, affecting the backwashing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the internal structure of the tank and the drum of the utility model;

[0015] Figure 2 This is a top view of the internal structure of the tank of the utility model;

[0016] Figure 3 For this utility model Figure 1 Schematic diagram of the local structure at the corresponding position of the middle scraper;

[0017] Figure 4 For this utility model Figure 2 Schematic diagram of the local structure at the corresponding position of the middle scraper.

[0018] In the figure: 1. tank body; 2. drum; 3. machine cover; 4. column scraper seat; 41. lifting rod; 5. scraper; 6. backwash pipe; 7. nozzle; 8. push rod; 9. connecting rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1-4 As shown, the utility model provides a technical solution: a vertical centrifuge, comprising a tank body 1, a drum 2 rotatably connected to the inside of the tank body 1, a machine cover 3 movably mounted on the top of the tank body 1, a columnar scraper seat 4 rotatably mounted on the machine cover 3, a scraper 5 mounted on the surface of a lifting rod 41 vertically movably connected to the columnar scraper seat 4, and a backwashing pipe 6 arranged between the tank body 1 and the drum 2. The backwashing pipe 6 is connected to an air pump or a water pump. When the air pump is connected, air is pumped in to wash the drum 2. The air is not easy to react with common centrifugal solids. The drum 2 can be washed while the scraper 5 cleans the solids. The two processes do not affect each other, thereby improving efficiency.

[0021] There are two scrapers 5 which are parallel to each other. The distance between the two scrapers 5 is half the height of the drum 2. When cleaning the solids on the inner wall of the drum 2, the lifting rod 41 can clean all the solids on the inner wall of the drum 2 by lifting half. The cleaning efficiency is high. The distance between the end of the scraper 5 and the lifting rod 41 is equal to the distance between the lifting rod 41 and the inner wall of the drum 2. A push rod 8 is hinged on the cover 3. The push rod 8 is hinged to the column scraper seat 4 through a connecting rod 9. Before centrifugation, the push rod 8 drives the column scraper seat 4, the lifting rod 41 and the scraper 5 to rotate through the connecting rod 9. The scraper 5 is separated from the inner wall of the drum 2 to prevent the scraper 5 from affecting the adhesion of solid materials on the inner wall of the drum 2 and the separation of liquid during the separation process.

[0022] A nozzle 7 is arranged on the backwash pipe 6. Two groups of nozzles 7 are arranged on the backwash pipe 6. Each group of nozzles 7 includes a plurality of nozzles 7. The two groups of nozzles 7 are equidistantly arranged along the surface of the vertically arranged backwash pipe 6. The backwash pipe 6 corresponds to the positions of the lifting rod 41 and the scraper 5. One of the two groups of nozzles 7 corresponds to the positions of the lifting rod 41 and the scraper 5, and the other group of nozzles 7 points to the surface position of the drum 2 corresponding to the front of the scraper 5. The two groups of nozzles 7 form a flushing area. The flushing area is located counterclockwise from the surface position of the drum 2 corresponding to the backwash pipe 6. The drum 2 rotates clockwise, so that more gas or liquid passes vertically through the dense mesh holes of the drum 2 into the drum 2 during flushing, thereby improving the flushing force and flushing effect.

[0023] Working principle: Before centrifugation, the push rod 8 pulls the column scraper seat 4, the lifting rod 41 and the scraper 5 to rotate clockwise through the connecting rod 9, and the scraper 5 is separated from the inner wall of the drum 2 to prevent the scraper 5 from affecting the adhesion of solid materials to the inner wall of the drum 2 and the separation of liquid during the separation process; the material to be separated is added to the drum 2, and the drum 2 rotates at a high speed to throw out the liquid in the material, and the separated solid is attached to the inner wall of the drum 2; the push rod 8 pushes the column scraper seat 4, the lifting rod 41 and the scraper 5 to rotate counterclockwise through the connecting rod 9, and the scraper 5 contacts the inner wall of the drum 2, and the drum 2 rotates, and at the same time, the column scraper seat 4 is pulled by the lifting rod 41 drives the scraper 5 to rise or fall, so as to scrape off the solids on the inner wall of the drum 2; when the backwash pipe 6 is connected to the air pump, air is pumped in to wash the drum 2. Air is not easy to react with common centrifugal solids, so the drum 2 can be washed while the scraper 5 cleans the solids. The two processes do not affect each other, which improves the efficiency; the two groups of nozzles 7 form a flushing area, which is located in the counterclockwise direction of the position on the surface of the drum 2 corresponding to the backwash pipe 6, and the drum 2 rotates clockwise, so that more gas or liquid can vertically pass through the dense mesh of the drum 2 to enter the drum 2 during flushing, thereby improving the flushing force and flushing effect.

[0024] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vertical centrifuge, comprising a tank body (1), a drum (2) rotatably connected to the inside of the tank body (1), a cover (3) movably mounted on the top of the tank body (1), a columnar scraper seat (4) rotatably mounted on the cover (3), a scraper (5) mounted on the surface of a lifting rod (41) vertically movably connected to the columnar scraper seat (4), and a backwashing pipe (6) arranged between the tank body (1) and the drum (2), wherein a nozzle (7) is arranged on the backwashing pipe (6), characterized in that: Two groups of nozzles (7) are arranged on the backwash pipe (6). The nozzles (7) are arranged equidistantly along the surface of the vertically arranged backwash pipe (6). The backwash pipe (6) corresponds to the positions of the lifting rod (41) and the scraper (5). One of the two groups of nozzles (7) corresponds to the positions of the lifting rod (41) and the scraper (5), and the other group of nozzles (7) points to the surface position of the drum (2) corresponding to the front of the scraper (5).

2. A vertical centrifuge according to claim 1, characterized in that: There are two scrapers (5) which are parallel to each other, and the distance between the two scrapers (5) is half the height of the drum (2).

3. A vertical centrifuge according to claim 1, characterized in that: The distance between the end of the scraper (5) and the lifting rod (41) is equal to the distance between the lifting rod (41) and the inner wall of the rotating drum (2).

4. A vertical centrifuge according to claim 1, characterized in that: A push rod (8) is hinged on the machine cover (3), and the push rod (8) is hinged to the columnar scraper seat (4) via a connecting rod (9).

5. A vertical centrifuge according to claim 1, characterized in that: The backwash pipe (6) is connected to an air pump or a water pump.

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