CN213348063U

CN213348063U - Closed continuous filter pressing device

Info

Publication number: CN213348063U
Application number: CN202022023539.2U
Authority: CN
Inventors: 姜正军; 康梅; 岳玉秀; 翟海涛; 王少娟; 匡宝晓; 张新江; 席磊刚; 郭文志; 朱孟豪
Original assignee: Shandong Huachen Biochemistry Co ltd
Current assignee: Shandong Huachen Biochemistry Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-06-04
Anticipated expiration: 2030-09-15

Abstract

The utility model discloses a closed continuous filter pressing device, which relates to the technical field of filtration and comprises a mixing tank, wherein the bottom of the mixing tank is provided with a raw material inlet and outlet, the upper part of the mixing tank is provided with a backflow port, and the mixing tank is also provided with a stirring mechanism; the bottom of the closed filter press is provided with a slag discharge port, a feed inlet is arranged above the slag discharge port and communicated with the raw material inlet and outlet pipeline, an overflow port is arranged above the slag discharge port and communicated with the return port pipeline, the overflow port pipeline is communicated with a water inlet, and the upper part of the closed filter press is provided with an air inlet; and the filter pressing pump is arranged on the communicating pipeline between the feed inlet and the raw material inlet and outlet. Has the following advantages: 1) the filtering process is completely closed, so that the material leakage is prevented, the material loss is reduced, and the production cost is reduced; 2) potential safety hazards are reduced, and production safety is guaranteed; 3) the continuous operation can be realized, the manual operation is reduced, and the labor cost is reduced.

Description

Closed continuous filter pressing device

Technical Field

The utility model belongs to the technical field of the filtration technique and specifically relates to a closed continuous filter pressing device is related to.

Background

Vitamin B5(Vitamin B5), also known as calcium D-pantothenate, is one of the 13 vitamins essential to the human body, a water-soluble Vitamin, one of the B-family members of the Vitamin, which is a component of coenzyme a (coa) and acyl carrier protein (acp). Pantothenic acid in the body is almost used to form the prosthetic group of coenzyme a and acp. The demand structure is as follows: the market demand of vitamin B5 globally amounts to about 21,000 tons in 2013, and as the social development level increases, the market demand of vitamin B5 still shows a steady growth trend, and particularly in developing countries, the growth rate is particularly obvious. Vitamin B5 will still develop at a composite growth rate of more than 5% in a future period, and the demand is mainly for feed: the downstream is mainly animal feed, food additives and medicinal raw materials which respectively account for 75%, 15% and 10%.

The production process comprises the following steps: the former stage production process of vitamin B5 has several kinds, and the latter stage resolution process has two kinds, chemical and microbial enzyme resolution. Vitamin B5 (calcium D-pantothenate) first produced 2 important intermediates, beta-aminopropionic acid and DL-pantolactone, respectively. The synthesis of beta-aminopropionic acid comprises an acrylonitrile route, an acrylic acid route, a succinimide route and the like, and most domestic production plants adopt the acrylonitrile route. In the production process, the methanol solution of the calcium salt synthesis post contains a small amount of ash, and can be sent to a downstream process for use after being filtered, and the original technology adopts a mode of filtering and separating by a centrifuge and plate-and-frame filter pressing, and has the following defects.

1) The boiling point of the methanol is low and the methanol is easy to volatilize, and the loss of the methanol is large in the high-speed operation process of the centrifugal machine;

2) methanol belongs to flammable and explosive substances, and is easy to generate static electricity in a high-speed rotation state, so that potential safety hazards exist;

3) the centrifuge and the plate frame are difficult to be in a closed state, and the material leakage condition exists in the operation process;

4) the equipment is operated intermittently, the operation is complex, and the labor cost is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a closed continuous filter pressing device adopts following technical scheme: a closed continuous pressure filtration device comprising:

the bottom of the mixing tank is provided with a raw material inlet and a raw material outlet, the upper part of the mixing tank is provided with a backflow port, and the mixing tank is also provided with a stirring mechanism;

the bottom of the closed filter press is provided with a slag discharge port, a feed inlet is arranged above the slag discharge port and communicated with the raw material inlet and outlet pipeline, an overflow port is arranged above the slag discharge port and communicated with the return port pipeline, the overflow port pipeline is communicated with a water inlet, and the upper part of the closed filter press is provided with an air inlet;

and the filter pressing pump is arranged on the communicating pipeline between the feed inlet and the raw material inlet and outlet.

Preferably, a first valve is arranged at the raw material inlet and outlet.

Preferably, a second valve is arranged on a pipeline between the pressure filtration pump and the feeding hole.

Preferably, a fourth valve is arranged on a pipeline between the overflow port and the return port.

Preferably, a fifth valve is arranged at the slag discharge port.

The utility model discloses the synthetic post methanol solution of calcium salt that will contain a small amount of lime-ash directly gets into novel closed continuous filter pressing device, and the production process carries out in succession under airtight state has following advantage:

1) the filtering process is completely closed, so that the material leakage is prevented, the material loss is reduced, and the production cost is reduced;

2) potential safety hazards are reduced, and production safety is guaranteed;

3) the continuous operation can be realized, the manual operation is reduced, and the labor cost is reduced.

Drawings

FIG. 1 is a schematic structural view of a closed continuous filter pressing device.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and examples.

As shown in figure 1, the closed continuous filter pressing device consists of a mixing tank 1, a closed filter press 3 and a filter press pump 2.

Wherein mixing tank 1 bottom is provided with raw materials import and export 13, and upper portion is provided with backward flow mouth 12, is provided with rabbling mechanism, and mixing tank 1 has the stirring function, and agitator motor 11 sets up the upper end at mixing tank 1. The raw material inlet 13 and the raw material outlet 13 are provided with a first valve 51.

The bottom of the closed filter press 3 is provided with a slag discharge port 35, and a fifth valve 55 is arranged at the slag discharge port 35. A feed inlet 34 is arranged above the slag discharge port 35 and is communicated with the raw material inlet and outlet 13 through a first pipeline 41, an overflow port 33 is arranged above the closed pressure filter 3 and is communicated with the return port 12 through a second pipeline 42, the overflow port 33 is communicated with a water inlet 32 through a pipeline, and an air inlet 31 is arranged at the upper part of the closed pressure filter 3; the pressure filtration pump 2 is provided on the first pipe 41 between the feed port 34 and the raw material port 13. A second valve 52 is provided in the conduit between the pressure filtration pump 2 and the inlet port 34. A fourth valve 54 is provided in the second conduit 42 between the overflow port 33 and the return port 12. A third pipeline 43 is also arranged between the inlet and the outlet of the pressure filtration pump 2, and a sixth valve 56 is arranged on the third pipeline 43. The overflow port 33 is further provided with a fourth pipe 44 connected to the methanol solution storage tank 6 and the sampling port 7, and the fourth pipe 44 is provided with a third valve 53.

The operation process is briefly described as follows: and the methanol solution containing ash and slag enters a mixing tank through a first pipeline to be mixed, a filter pressing pump is started, a second valve is opened, the mixture enters a closed filter press to be subjected to filter pressing, a third valve is opened, and the methanol solution after the ash and slag are filtered enters a methanol solution storage tank through a fourth pipeline. When ash and slag need to be discharged, the third valve and the fourth valve are closed, cleaning water is introduced from the water inlet, pulse compressed air is introduced from the air inlet, and the fifth valve is opened, so that the ash and slag can be discharged. When sampling is needed, the valve at the outlet of the sampling port is opened to carry out sampling.

Although the specific embodiments of the present invention have been described above with reference to the accompanying drawings, the scope of the present invention is not limited thereto, and for some technical contents known to those skilled in the art, the detailed description is omitted here, and it should be understood by those skilled in the art that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.

Claims

1. A closed continuous filter press apparatus, comprising:

the mixing tank (1) is provided with a raw material inlet and outlet (13) at the bottom and a backflow port (12) at the upper part, and the mixing tank (1) is also provided with a stirring mechanism;

the bottom of the closed filter press is provided with a slag discharge port (35), a feed inlet (34) is arranged above the slag discharge port (35) and is communicated with the raw material inlet and outlet (13) through a pipeline, an overflow port (33) is arranged above the slag discharge port and is communicated with the return port (12) through a pipeline, the overflow port (33) is communicated with a water inlet (32) through a pipeline, and the upper part of the closed filter press is provided with an air inlet (31);

and the filter pressing pump (2) is arranged on a communication pipeline between the feed inlet (34) and the raw material inlet and outlet (13).

2. The hermetic continuous pressure filtration device according to claim 1, wherein a first valve (51) is provided at the raw material inlet/outlet (13).

3. The hermetic continuous pressure filtration device according to claim 1, wherein a second valve (52) is provided on the pipe between the pressure filtration pump (2) and the feed inlet (34).

4. The hermetic continuous pressure filtration device according to claim 1, wherein a fourth valve (54) is provided on the conduit between the overflow port (33) and the return port (12).

5. The hermetic continuous filter press according to claim 1, characterized in that a fifth valve (55) is provided at the slag discharge port (35).