CN211486800U

CN211486800U - Piston type reaction filter

Info

Publication number: CN211486800U
Application number: CN201922153032.6U
Authority: CN
Inventors: 项飞鹏; 陈锡炯; 刘春红; 张佳宁; 杜凯敏; 周学忠
Original assignee: Zhejiang Zheneng Changxing Power Generation Co ltd; Zhejiang Energy Group Research Institute Co Ltd
Current assignee: Zhejiang Zheneng Changxing Power Generation Co ltd; Zhejiang Energy Group Research Institute Co Ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-09-15
Anticipated expiration: 2029-12-05

Abstract

The utility model relates to a piston type reaction filter, which comprises a reaction kettle body divided into three sections, a piston, a kettle cover, a stirring device and a heating device; the reaction kettle body is divided into a reaction area, a filtering area and a tail area from top to bottom along the height direction; a piston is arranged in the reaction kettle body, and rubber is sleeved on the upper surface and the side wall of the piston; the upper end of the reaction kettle body is provided with a kettle cover, and the kettle cover is provided with a stirring device, a feeding hole and a nozzle; the outer surface of the reaction zone is provided with a heating device; a vacuum cavity is arranged outside the filtering area and is respectively connected with a vacuumizing device and a liquid storage tank; the bottom of the side wall of the reaction area is provided with a secondary reaction discharge hole which is arranged downwards in an inclined manner and is provided with a valve. The utility model has the advantages that: the utility model discloses integrated reactor and filtering capability, just can realize solid-liquid separation inside the reactor, carry out the technology of secondary reaction to needs, reduced equipment investment cost, saved the place space.

Description

Piston type reaction filter

Technical Field

The utility model relates to a filter, concretely relates to piston reaction filter belongs to chemical industry technical field.

Background

In the chemical industry, a large number of similar reactions generate a mixture product system of a solid product and a liquid product after the reactions, and the newly generated solid product needs to be separated from the liquid product and separately reacts with other substances for the second time. Normally, this operation requires a separate reactor and a separate filtration device, thus occupying the space of the two apparatuses, and the transfer of the mixed liquid between the apparatuses may cause the loss and contamination of the product. In the actual process, the arrangement form of the reactor and the filtering device is that the reactor is usually arranged above the filtering device, and the solid-liquid mixture automatically flows into the filtering device by utilizing gravity to realize solid-liquid separation on the filtering device. But the filtered solid material needs to be additionally used for doing work when being refilled into the original reactor. If the reaction and the solid-liquid separation function can be simultaneously realized by the equipment device, not only the arrangement space can be saved, but also part of the power consumption for additionally improving the height of the solid material can be saved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects in the prior art and providing a piston type reaction filter.

The piston type reaction filter comprises a reaction kettle body divided into three sections, a piston, a kettle cover, a stirring device and a heating device; the reaction kettle body is divided into a reaction area, a filtering area and a tail area from top to bottom along the height direction; a piston is arranged in the reaction kettle body, and rubber is sleeved on the upper surface and the side wall of the piston; the upper end of the reaction kettle body is provided with a kettle cover, and the kettle cover is provided with a stirring device, a feeding hole and a nozzle; the outer surface of the reaction zone is provided with a heating device; a vacuum cavity is arranged outside the filtering area and is respectively connected with a vacuumizing device and a liquid storage tank; the bottom of the side wall of the reaction area is provided with a secondary reaction discharge hole.

Preferably, the method comprises the following steps: the reaction zone and the tail zone are made of stainless steel.

Preferably, the method comprises the following steps: the filtering area is made of a stainless steel sintered filter element material, and the filtering aperture is 1-10 microns.

Preferably, the method comprises the following steps: the reaction zone, the filtration zone and the tail zone have the same inner diameter and are welded into an integral structure.

Preferably, the method comprises the following steps: the four nozzles are symmetrically arranged on the kettle cover, and the orientations of the four nozzles are respectively aligned with the inner wall of the filtering area.

Preferably, the method comprises the following steps: the outer wall of the reaction zone is wound with an electric heating wire as a heating device.

Preferably, the method comprises the following steps: the secondary reaction discharge hole is arranged obliquely downwards and is provided with a valve.

Preferably, the method comprises the following steps: the outer wall of the vacuum cavity is wrapped with a layer of closed negative pressure ring.

Preferably, the method comprises the following steps: the stirring device comprises a stirring motor and a stirring blade.

The utility model has the advantages that:

1) the utility model discloses integrated reactor and filtering capability, just can realize solid-liquid separation inside the reactor, carry out the technology of secondary reaction to needs, reduced equipment investment cost, saved the place space.

2) The utility model discloses seal the result of a reaction and deposit inside the reactor, avoided the pollution that a reaction product caused the environment under external filtration condition, also protected a reaction product simultaneously and not influenced by external environment.

3) Compare and need do more consumptions in external filtration and promote a reaction product height and make it get into the reactor, the utility model discloses a piston that can reciprocate sends back solid material to the reaction zone and carries out the secondary reaction, can save the consumption that additionally promotes solid material height, and this is more obvious when output is enlargied.

Drawings

FIG. 1 is a schematic diagram showing the position of a piston during reaction of the present invention;

fig. 2 is a schematic diagram of the position of the piston during filtering according to the present invention.

Description of reference numerals: 1. a stirring device; 2. a nozzle; 3. a kettle cover; 4. a heating device; 5. rubber; 6. a piston; 7. a sintered filter element for filtration; 8. a vacuum chamber; 9. a vacuum pump connection port; 10. a liquid storage tank connecting port; 11. a secondary reaction discharge hole; 12. a feed aperture.

Detailed Description

The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

The piston type reaction filter is suitable for the condition that solid materials need to be removed from the original reaction liquid environment for secondary reaction. The reactor and the filtering device are designed in an integrated mode, namely, solid-liquid separation can be realized in the reactor, and no additional filtering device is needed. Specifically, the reactor and the filtering device are respectively positioned in an upper section and a lower section, the upper section is a reaction area, the lower section is a filtering area, the two sections are communicated by a piston capable of moving up and down, the piston reacts when in the upper section, and the piston filters when in the lower section. The filtration process is completed on the inner cylinder wall. After the filtration is finished, the piston moves back to the upper section again, and the solid material adhered to the inner cylinder wall is pushed to return to the reaction area again for secondary reaction in the moving process.

The piston type reaction filter is in a shape of a straight cylinder, and comprises the following components: the device comprises a reaction kettle body divided into three sections, a piston 6, a kettle cover 3, a stirring device 1, a heating device 4 and a vacuumizing device. The reaction kettle body is divided into a reaction area, a filtering area and a tail area from top to bottom along the height direction, wherein the reaction area and the tail area are made of stainless steel materials, the filtering area is made of stainless steel sintering filter element materials, the inner diameters of the filtering area and the filtering area are consistent, and an integrated structure is formed through a welding process; the upper surface and the side wall of the piston 6 are sleeved with rubber 5, so that the reaction liquid can not leak out from between the piston 6 and the inner cylinder wall when the piston 6 slides; and the kettle cover 3 is provided with a stirring device 1, a feeding hole 12 and four nozzles 2 which are symmetrically distributed. The outer surface of the reaction zone is provided with a heating device 4. The outer side of the filtering area is provided with a vacuum cavity 8, and the vacuum cavity 8 is respectively connected with a vacuumizing device and a liquid storage tank. The bottom of the side wall of the reaction area is provided with a secondary reaction discharge hole 11 which inclines downwards.

Four nozzles 2 are symmetrically arranged on the kettle cover 3, and the orientation of the nozzles is respectively aligned with the inner wall of the filtering area.

The inner surfaces of the reaction filters are required to be polished, and the polishing grade Ra is 0.025-1.6 microns.

The outer wall of the reaction zone is wound with an electric heating wire which serves as a heating device to heat the reaction zone, and the heating temperature is 40-70 ℃.

The secondary reaction discharge hole 11 is arranged obliquely downward, and the secondary reaction discharge hole 11 is opened and closed by a valve.

The material of the filtering area includes but is not limited to a 316L stainless steel sintered filter element, and the filtering aperture is 1-10 microns.

The outer wall of the vacuum cavity 8 is wrapped with a layer of closed negative pressure ring which is connected with a vacuum pump and a liquid storage tank. The negative pressure is maintained by a vacuum pump, and the vacuum degree is 0.3-0.8 MPa. The filtrate directly enters the liquid storage tank from a liquid outlet of the closed structure (namely a liquid storage tank connecting port 10).

The piston coating material includes, but is not limited to, highly elastic materials such as silicone rubber.

The thrust of the piston includes, but is not limited to, hydraulic actuation.

The stirring device 1 includes a stirring motor and a stirring blade.

Before the reaction starts, reaction materials are added from a feeding hole 12 on the kettle cover 3, the reaction condition is adjusted through the stirring device 1 and the heating device 4, and the reaction zone starts to react for one time. After a certain reaction time, the stirring is stopped, the primary reaction is stopped, the piston 6 is positioned at the bottom position of the reaction zone, and the reaction slurry (solid-liquid mixture) is stored on the piston 6. The piston 6 is then moved down rapidly and the reaction slurry is moved down to the filtration zone. The vacuum chamber 8 outside the filtering area is vacuumized by a vacuum pump, and the vacuum degree of the vacuum chamber 8 is kept about 0.7 MPa. Under the action of peripheral vacuum pressure, reaction slurry accumulated on the piston starts to be filtered, and liquid in the slurry enters the vacuum cavity 8 and flows into the liquid storage tank to be stored under the action of gravity. The residual solids are adsorbed on the inner wall of the filtration zone (filter cake formation on the inner wall of the filtration zone). The solid material is washed by spraying water downwards through the nozzles 2 according to the process requirements. After the filtration is finished, the piston 6 is moved upwards, solid materials adhered to the inner wall of the filtration zone are scraped off in the process of moving upwards (the solid materials fall back to the upper surface of the piston 6), and the materials are sent back to the reaction zone. After the piston 6 returns to the initial position (the bottom position of the reaction area), other materials are added for secondary reaction (the piston 6 does not move downwards after the secondary reaction is finished), and finally, the reaction product is discharged through a secondary reaction discharge hole 11 positioned at the bottom of the reaction area.

Claims

1. A piston reaction filter, characterized in that: comprises a reaction kettle body divided into three sections, a piston (6), a kettle cover (3), a stirring device (1) and a heating device (4); the reaction kettle body is divided into a reaction area, a filtering area and a tail area from top to bottom along the height direction; a piston (6) is arranged in the reaction kettle body, and rubber (5) is sleeved on the upper surface and the side wall of the piston (6); the upper end of the reaction kettle body is provided with a kettle cover (3), and the kettle cover (3) is provided with a stirring device (1), a feeding hole (12) and a nozzle (2); the outer surface of the reaction zone is provided with a heating device (4); a vacuum cavity (8) is arranged outside the filtering area, and the vacuum cavity (8) is respectively connected with a vacuumizing device and a liquid storage tank; the bottom of the side wall of the reaction area is provided with a secondary reaction discharge hole (11).

2. The piston-type reaction filter according to claim 1, wherein: the reaction zone and the tail zone are made of stainless steel.

3. The piston-type reaction filter according to claim 1, wherein: the filtering area is made of a stainless steel sintered filter element material, and the filtering aperture is 1-10 microns.

4. The piston-type reaction filter according to claim 1, wherein: the reaction zone, the filtration zone and the tail zone have the same inner diameter and are welded into an integral structure.

5. The piston-type reaction filter according to claim 1, wherein: the four nozzles (2) are symmetrically arranged on the kettle cover (3), and the orientations of the nozzles are respectively aligned with the inner wall of the filtering area.

6. The piston-type reaction filter according to claim 1, wherein: the outer wall of the reaction zone is wound with an electric heating wire as a heating device.

7. The piston-type reaction filter according to claim 1, wherein: the secondary reaction discharge hole (11) is arranged obliquely downwards, and the secondary reaction discharge hole (11) is provided with a valve.

8. The piston-type reaction filter according to claim 1, wherein: the outer wall of the vacuum cavity (8) is wrapped with a layer of closed negative pressure ring.

9. The piston-type reaction filter according to claim 1, wherein: the stirring device (1) comprises a stirring motor and a stirring blade.