CN211216053U

CN211216053U - Dual carbon dioxide dust remover

Info

Publication number: CN211216053U
Application number: CN201922150224.1U
Authority: CN
Inventors: 熊道明
Original assignee: Zhejiang Jiande Zhengfa Pharmaceutical Co ltd
Current assignee: Zhejiang Jiande Zhengfa Pharmaceutical Co ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-08-11
Anticipated expiration: 2029-12-04

Abstract

The utility model discloses a double carbon dioxide dust remover, which comprises a cyclone dust remover (1), wherein one side of the cyclone dust remover (1) is provided with a steam generator (2), and the cyclone dust remover (1) is connected with the steam generator (2) in parallel and then is connected with a filtering water tank (4) through a condensing tower (3); a water mist spray head (5) is arranged in the condensing tower (3), and a water pump (6) connected with the water mist spray head (5) is arranged on the outer side of the condensing tower (3); an upper space (7) and a lower space (8) are arranged in the filter water tank (4), a filter stack (9) is arranged between the upper space (7) and the lower space (8), an exhaust port (11) communicated with the upper space (7) is arranged at the top of the filter water tank (4), and water solution is arranged in the filter water tank (4). The utility model is used for the dust removal of carbon dioxide is handled has the advantage that the dust removal rate is high, can not lead to that medicinal calcium carbonate purity is low and the medicine quality is low.

Description

Dual carbon dioxide dust remover

Technical Field

The utility model belongs to the carbon dioxide purifier field of preparation pharmaceutical calcium carbonate especially relates to a dual carbon dioxide dust remover of preparation pharmaceutical calcium carbonate.

Background

The carbon dioxide is one of the main raw materials for preparing the medicinal calcium carbonate, is used for reacting with a calcium bicarbonate solution to generate the medicinal calcium carbonate, and the less the dust content is, the better the dust content is, so the carbon dioxide purchased from a pharmaceutical factory needs to be subjected to dust removal treatment to be used for preparing the medicinal calcium carbonate. The existing carbon dioxide dust removal device is a cyclone dust remover, and the dust removal mechanism of the cyclone dust remover is to make dust-containing airflow rotate, separate dust particles from the airflow by means of centrifugal force and collect the dust particles on the wall of the cyclone dust remover, and then make the dust particles fall into an ash bucket by means of gravity. The cyclone dust collector can effectively eliminate dust with the diameter of more than 5 mu m in the carbon dioxide, the dust removal filtration rate is more than 95 percent, it also has 80-85% dust removal rate for dust with diameter of 3-5 μm, but for the dust with the diameter of less than 3 μm, the dust removal filtration effect is not good and the dust removal rate is less than 60%, and the comprehensive dust removal rate of the cyclone dust collector to all the dust in the carbon dioxide is about 90% through experimental statistics, which means that more dust still exists in the carbon dioxide after dust removal treatment, used for preparing the medicinal calcium carbonate, the obtained medicinal calcium carbonate also correspondingly contains more dust and has lower purity, the dust is synthesized into the medicine along with the medicinal calcium carbonate, the quality of the medicine is reduced, for some medicines with high purity requirements, the effect of the medicine is seriously influenced by more dust in the medicines. Therefore, the existing cyclone dust collector for the dust removal treatment of the carbon dioxide has the defect of low dust removal rate, which can cause low purity of the medicinal calcium carbonate and low medicine quality.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dual carbon dioxide dust remover. The utility model is used for the dust removal of carbon dioxide is handled has the advantage that the dust removal rate is high, can not lead to that medicinal calcium carbonate purity is low and the medicine quality is low.

The technical scheme of the utility model: a dual carbon dioxide dust remover comprises a cyclone dust remover, wherein a steam generator is arranged on one side of the cyclone dust remover, and the cyclone dust remover is connected with the steam generator in parallel and then connected with a filter water tank through a condensing tower; a water mist spray head is arranged in the condensing tower, and a water pump connected with the water mist spray head is arranged on the outer side of the condensing tower; an upper space and a lower space are arranged in the filtering water tank, a filtering stack is arranged between the upper space and the lower space, an exhaust port communicated with the upper space is formed in the top of the filtering water tank, and aqueous solution is arranged in the filtering water tank.

In the double carbon dioxide dust remover, the air outlet of the cyclone dust remover is provided with the first pipeline, the air outlet of the steam generator is provided with the second pipeline, the first pipeline and the second pipeline are connected with the condensing tower through the third pipeline, and the condensing tower is connected with the lower space through the fourth pipeline.

In the double carbon dioxide dust remover, the filtering stack comprises an upper pore plate and a lower pore plate, a multi-layer stacked filter screen is arranged between the two pore plates, and the aperture of the filter screen is smaller than 2.5 mm.

In the dual carbon dioxide dust remover, the condensing tower is provided with an inlet connected with the third pipeline and an outlet connected with the fourth pipeline, and the inner side of the outlet is provided with a spherical guide plate.

In the double carbon dioxide dust remover, the air outlet direction of the inlet is opposite to the central position of the guide plate, and the spherical center of the guide plate is arranged on the fourth pipeline.

Compared with the prior art, the utility model adds a steam generator, a condensing tower and a filtering water tank on the basis of the existing cyclone dust collector, and the cyclone dust collector is mainly responsible for filtering dust with the diameter of more than 5 μm, namely the first heavy filtering; the steam generator, the condensing tower and the filtering water tank are mainly responsible for filtering dust with the diameter of less than 5 mu m, namely secondary filtering; the dust content in the carbon dioxide is reduced by double filtration. Through tests, the dust removal filter can remove 97% of dust with the diameter of more than 5 microns, the dust removal rate of the dust with the diameter of 3-5 microns can reach 90%, the dust removal rate of the dust with the diameter of less than 3 microns can reach 84%, and the comprehensive dust removal filter with dust can reach 94%. Therefore, the utility model is used for the dust removal of carbon dioxide handles has the advantage that the dust removal rate is high, can not lead to that medicinal calcium carbonate purity is low and the medicine quality is low.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

The labels in the figures are: 1-cyclone dust collector, 2-steam generator, 3-condensation tower, 4-filtering water tank, 5-water spray nozzle, 6-water pump, 7-upper space, 8-lower space, 9-filtering stack, 11-exhaust port, 13-first pipeline, 14-second pipeline, 15-third pipeline, 16-fourth pipeline, 17-pore plate, 18-inlet, 19-outlet and 20-guide plate.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Examples are given. A double carbon dioxide dust remover is shown in figure 1 and comprises a conventional cyclone dust remover 1, wherein a steam generator 2 is arranged on one side of the cyclone dust remover 1, and the cyclone dust remover 1 is connected with the steam generator 2 in parallel and then is connected with a filter water tank 4 through a condensing tower 3; a water mist spray head 5 is arranged in the condensing tower 3, a water pump 6 connected with the water mist spray head 5 is arranged on the outer side of the condensing tower 3, and the water pump 6 is fixed at the top of the condensing tower 3 and is connected with a water tower filled with deionized water; an upper space 7 and a lower space 8 are arranged in the filtering water tank 4, a filtering stack 9 is arranged between the upper space 7 and the lower space 8, an exhaust port 11 communicated with the upper space 7 is arranged at the top of the filtering water tank 4, and water solution is arranged in the filtering water tank 4.

The air outlet of the cyclone dust collector 1 is provided with a first pipeline 13, the air outlet of the steam generator 2 is provided with a second pipeline 14, the first pipeline 13 and the second pipeline 14 are connected with the condensing tower 3 through a third pipeline 15, and the condensing tower 3 is connected with the lower space 8 through a fourth pipeline 16.

Filter stack 9 includes two piece upper and lower orifice plates 17, and orifice plate 17 is fixed with filtration water tank 4, is equipped with the filter screen that the multilayer was piled up between two orifice plates 17, the filter screen is stainless wire net, and stainless wire net's steel wire diameter is 0.9mm, aperture 1.9 mm.

An inlet 18 connected with the third pipeline 15 and an outlet 19 connected with the fourth pipeline 16 are arranged on the condensing tower 3, a spherical guide plate 20 is arranged on the inner side of the outlet 19, and a gap is reserved between the guide plate 20 and the side wall of the condensing tower 3.

The air outlet direction of the inlet 18 is opposite to the central position of the guide plate 20, and the spherical center of the guide plate 20 is positioned on the fourth pipeline 16.

The aqueous solution contains a defoaming agent and the level of the aqueous solution is located in the head space 7.

The working principle is as follows: according to the prior art, carbon dioxide is firstly introduced into the cyclone dust collector 1 for primary dust collection, the carbon dioxide discharged from the cyclone dust collector 1 is input into the third pipeline 15 from the first pipeline 13, and the primary dust collection mainly aims at dust with the diameter of more than 5 mu m; the steam generator 2 generates steam and enters the third conduit 15 through the second conduit 14. Carbon dioxide and steam through first dust removal are mixed in the third pipeline 15, dust (mainly dust with the diameter of 3-5 mu m) in the carbon dioxide contacts with the steam to form small water drops, the dust enters the condensing tower 3, deionized water enters the condensing tower 3 through the water mist nozzle under the action of the water pump to form water mist, the small water drops contact with the water mist to generate large water drops, the large water drops are deposited at the bottom of the condensing tower 3, at the moment, the carbon dioxide removes dust for the second time, the dust with the diameter of 3-5 mu m is mainly removed by the second time, the dust is firstly contacted with the steam and the dust, and due to the fact that the steam and the dust have large contact area, the dust can be fully contacted with the steam to generate a large number of small water drops, and the dust removal effect can. Carbon dioxide subjected to secondary dust removal is introduced into the filtering water tank 4, dust stays in the aqueous solution, the carbon dioxide is discharged from the exhaust port 11, the carbon dioxide is subjected to tertiary dust removal, the secondary dust removal mainly aims at dust with the diameter of less than 3 micrometers, the filtering stack 9 breaks up bubbles formed by introduction of the carbon dioxide, so that the contact area of the dust and the aqueous solution is increased, the dust removal rate is improved, the aqueous solution contains a defoaming agent, the formation of large bubbles caused by introduction of the carbon dioxide can be avoided, the contact area of the dust and the aqueous solution is further increased, and the dust removal rate is improved.

Therefore, the utility model is used for the dust removal of carbon dioxide handles has the advantage that the dust removal rate is high, can not lead to that medicinal calcium carbonate purity is low and the medicine quality is low.

Claims

1. The utility model provides a dual carbon dioxide dust remover which characterized in that: the device comprises a cyclone dust collector (1), wherein a steam generator (2) is arranged on one side of the cyclone dust collector (1), and the cyclone dust collector (1) is connected with the steam generator (2) in parallel and then connected with a filtering water tank (4) through a condensing tower (3); a water mist spray head (5) is arranged in the condensing tower (3), and a water pump (6) connected with the water mist spray head (5) is arranged on the outer side of the condensing tower (3); an upper space (7) and a lower space (8) are arranged in the filter water tank (4), a filter stack (9) is arranged between the upper space (7) and the lower space (8), an exhaust port (11) communicated with the upper space (7) is arranged at the top of the filter water tank (4), and water solution is arranged in the filter water tank (4).

2. The dual carbon dioxide precipitator of claim 1, wherein: the air outlet of the cyclone dust collector (1) is provided with a first pipeline (13), the air outlet of the steam generator (2) is provided with a second pipeline (14), the first pipeline (13) and the second pipeline (14) are connected with the condensing tower (3) through a third pipeline (15), and the condensing tower (3) is connected with the lower space (8) through a fourth pipeline (16).

3. The dual carbon dioxide precipitator of claim 1, wherein: the filter stack (9) comprises an upper pore plate and a lower pore plate (17), a multi-layer stacked filter screen is arranged between the two pore plates (17), and the aperture of the filter screen is smaller than 2.5 mm.

4. The dual carbon dioxide precipitator of claim 3, wherein: the filter screen is a stainless steel wire mesh, and the diameter of the steel wire of the stainless steel wire mesh is 0.8-1mm, and the aperture is 1.8-2 mm.

5. The dual carbon dioxide precipitator of claim 2, wherein: an inlet (18) connected with the third pipeline (15) and an outlet (19) connected with the fourth pipeline (16) are arranged on the condensing tower (3), and a spherical guide plate (20) is arranged on the inner side of the outlet (19).

6. The dual carbon dioxide precipitator of claim 5, wherein: the air outlet direction of the inlet (18) is opposite to the central position of the guide plate (20), and the spherical center of the guide plate (20) is arranged on the fourth pipeline (16).