Petrochemical multi-stage gas-solid separation equipment

Abstract

The utility model relates to the technical field of gas-solid separation, in particular to petrochemical multi-stage gas-solid separation equipment which comprises a bearing bottom plate, and the top of the bearing bottom plate is fixedly connected with a gas-solid separation assembly; preliminary separation is carried out under the action of gravity, secondary separation is carried out under the action of the communicating pipe, the downcomer and the distributor, the efficiency and precision of the separation process can be improved through multi-stage separation, energy consumption and material consumption in the separation process can be reduced through precise calculation separation, the product quality and yield are improved, and the production cost is reduced. Small liquid drops separated from flue gas can be slowly condensed into large liquid drops by utilizing the mist catcher, the liquid drops and a small amount of dust in the flue gas are demisted and captured, water carried by the flue gas is reduced, and the separation benefit is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of gas-solid separation, in particular to a petrochemical multi-stage gas-solid separation device. Background Art

[0002] In modern industrial production, the fields involving high-temperature gas-solid separation are very extensive, such as high-temperature reaction gases in petrochemical and chemical industries, high-temperature coal gas in blast furnaces and converters in metallurgical industries, high-temperature tail gas in glass industry, high-temperature waste gas from boilers and incinerators, synthesis gas from polysilicon synthesis furnaces, etc. There are two types of high-temperature gas-solid separation process technologies: one is high-temperature direct dust removal, which includes cyclone dust removal, particle layer filtration, filtration dust removal, etc.; the other is to reduce the temperature to below 200°C for gas-solid separation by spray cooling, heat exchange, etc.

[0003] The traditional cyclone separation method uses a rotating airflow to act on particles to separate the particles from the airflow. However, when treating flue gas pollution, if the amount of flue gas to be treated is large, a cyclone separator with a diameter that is too large will reduce the dust removal and separation efficiency due to the reduced centrifugal force. The use of a multi-tube cyclone separator will cause problems such as uneven load distribution or cross-talk due to unbalanced resistance. The catalytic cracking separation system often causes some cracking products to excessively contact with the high-temperature catalyst, causing excessive cracking and severe coking at the rear of the reaction system, which becomes a restrictive factor that plagues the safe operation of the device. Therefore, a petrochemical multi-stage gas-solid separation equipment is needed to improve the above problems. Utility Model Content

[0004] In order to solve the problem that the traditional cyclone separation method in the existing solution uses a rotating airflow to act on particles to separate the particles from the airflow, but when flue gas pollution control is carried out, if the amount of flue gas to be treated is large, a cyclone separator with a diameter that is too large will reduce the dust removal and separation efficiency due to the decrease in centrifugal force. The use of a multi-tube cyclone separator will cause problems such as uneven load distribution or cross-talk due to unbalanced resistance. The catalytic cracking separation system often causes some cracking products to excessively contact with the high-temperature catalyst, causing excessive cracking and severe coking at the rear of the reaction system, which becomes a restrictive factor that plagues the safe operation of the device. Therefore, a petrochemical multi-stage gas-solid separation device is needed to improve the above-mentioned problems. The purpose of the utility model is to provide a petrochemical multi-stage gas-solid separation device to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A petrochemical multi-stage gas-solid separation device comprises a receiving bottom plate, the top of which is fixedly connected with a gas-solid separation component;

[0007] The gas-solid separation component includes a separation bin, a fixed plate is fixedly connected to the interior of the separation bin, a mist collector is fixedly connected to the side of the fixed plate, a disc is fixedly connected to the interior of the separation bin, a connecting pipe is fixedly connected to the top of the disc, a downcomer is fixedly connected to the bottom of the disc, a distributor is fixedly connected to the bottom of the mist collector, a liquid pump is installed on the top of the supporting bottom plate, a liquid inlet pipe is fixedly connected to the top of the liquid pump, a fourth valve is fixedly connected to the top of the liquid inlet pipe, the liquid inlet pipe extends to the interior of the separation bin, a control box is fixedly connected to the side of the separation bin, a liquid level controller and an instrument gas source key are fixedly connected to the side of the control box.

[0008] As a preferred solution of the utility model, an air outlet pipe is fixedly connected to the top of the separation bin, a first valve is fixedly connected to the top of the air outlet pipe, the air outlet pipe extends to the interior of the separation bin, an oil outlet pipe is fixedly connected to the side of the separation bin, a second valve is fixedly connected to the top of the oil outlet pipe, and the oil outlet pipe extends to the interior of the separation bin.

[0009] As a preferred solution of the utility model, a first support rod is fixedly connected to the side of the separation bin, a safety valve is fixedly connected to the top of the first support rod, a second support rod is fixedly connected to the side of the separation bin, and a pressure gauge is fixedly connected to the top of the second support rod.

[0010] As a preferred solution of the utility model, a water outlet pipe is fixedly connected to the side of the separation bin, a third valve is fixedly connected to the top of the water outlet pipe, and the water outlet pipe extends to the interior of the separation bin.

[0011] As a preferred solution of the utility model, a hanging ring is fixedly connected to the top of the separation bin, two hanging rings are provided, and a reinforcing rod is fixedly connected to the side of the separation bin.

[0012] As a preferred solution of the utility model, a sewage pipe is fixedly connected to the bottom of the separation bin, a fifth valve is fixedly connected to the top of the sewage pipe, the sewage pipe extends to the interior of the separation bin, and a vortex preventer is arranged on the top of the sewage pipe.

[0013] As a preferred solution of the present invention, the bottom of the separation bin is fixedly connected with a support rod, and four support rods are provided.

[0014] As a preferred solution of the utility model, a foot pad is fixedly connected to the bottom of the support rod, and four foot pads are provided.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the present invention, gravity is used for primary separation, and then a connecting pipe, a downcomer and a distributor are used for secondary separation. Multi-stage separation can improve the efficiency and accuracy of the separation process. Precise calculation separation helps to reduce the energy consumption and material consumption of the separation process and improve product quality and output.

[0017] 2. In the utility model, the small droplets separated from the flue gas are gradually condensed into larger droplets by utilizing the mist collector, and the mist collector captures the droplets and a small amount of dust in the flue gas, thereby reducing the water content of the flue gas and increasing the separation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the demisting exhaust assembly of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the sewage discharge component of the utility model.

[0022] In the figure: 1. supporting bottom plate; 2. gas-solid separation component; 201. separation chamber; 202. reinforcement rod; 203. control box; 204. liquid level controller; 205. instrument gas source key; 206. air outlet pipe; 207. first valve; 208. hanging ring; 209. first support rod; 210. safety valve; 211. second support rod; 212. pressure gauge; 213. oil outlet pipe; 214. second valve; 215. water outlet pipe; 216. third valve; 217. liquid inlet pipe; 218. fourth valve; 219. liquid pump; 220. fixing plate; 221. mist collector; 222. connecting pipe; 223. disc; 224. downcomer; 225. distributor; 226. sewage pipe; 227. fifth valve; 228. vortex preventer; 229. support rod; 230. foot pad. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] Example: See Figure 1-Figure 4A petrochemical multi-stage gas-solid separation device shown includes a receiving bottom plate 1, and a gas-solid separation component 2 is fixedly connected to the top of the receiving bottom plate 1;

[0025] In this embodiment, refer to Figure 1 , Figure 2 and Figure 3 As shown, the gas-solid separation component 2 includes a separation chamber 201, a fixed plate 220 is fixedly connected inside the separation chamber 201, a mist collector 221 is fixedly connected to the side of the fixed plate 220, a disc 223 is fixedly connected inside the separation chamber 201, a connecting pipe 222 is fixedly connected to the top of the disc 223, a downcomer 224 is fixedly connected to the bottom of the disc 223, a distributor 225 is fixedly connected to the bottom of the mist collector 221, a liquid pump 219 is installed on the top of the receiving bottom plate 1, a liquid inlet pipe 217 is fixedly connected to the top of the liquid pump 219, and a liquid inlet pipe 217 is fixedly connected to the top of the liquid pump 219. A fourth valve 218 is fixedly connected to the top, and a liquid inlet pipe 217 extends to the interior of the separation chamber 201. A control box 203 is fixedly connected to the side of the separation chamber 201. A liquid level controller 204 and an instrument gas source key 205 are fixedly connected to the side of the control box 203. Gravity is used for preliminary separation, and then a connecting pipe 222, a downcomer 224 and a distributor 225 are used for secondary separation. Multi-stage separation can improve the efficiency and accuracy of the separation process, and precise calculation separation helps to reduce the energy and material consumption of the separation process, and improve product quality and output.

[0026] Among them, the top of the separation chamber 201 is fixedly connected with an air outlet pipe 206, the top of the air outlet pipe 206 is fixedly connected with a first valve 207, the air outlet pipe 206 extends to the interior of the separation chamber 201, the side of the separation chamber 201 is fixedly connected with an oil outlet pipe 213, the top of the oil outlet pipe 213 is fixedly connected with a second valve 214, the oil outlet pipe 213 extends to the interior of the separation chamber 201, the side of the separation chamber 201 is fixedly connected with a first support rod 209, the top of the first support rod 209 is fixedly connected with a safety valve 210, the side of the separation chamber 201 is fixedly connected with a second support rod 211, and the second support rod 214 is fixedly connected to the second side of the separation chamber 201. A pressure gauge 212 is fixedly connected to the top of the rod 211, a water outlet pipe 215 is fixedly connected to the side of the separation chamber 201, a third valve 216 is fixedly connected to the top of the water outlet pipe 215, the water outlet pipe 215 extends to the interior of the separation chamber 201, a hanging ring 208 is fixedly connected to the top of the separation chamber 201, two hanging rings 208 are provided, a reinforcement rod 202 is fixedly connected to the side of the separation chamber 201, and the mist collector 221 can be used to slowly condense small droplets separated from the flue gas into larger droplets, and the mist collector captures droplets and a small amount of dust in the flue gas, reduces water in the flue gas, and increases the separation efficiency.

[0027] In this embodiment, refer to Figure 1 and Figure 4As shown, a sewage pipe 226 is fixedly connected to the bottom of the separation chamber 201, a fifth valve 227 is fixedly connected to the top of the sewage pipe 226, the sewage pipe 226 extends to the interior of the separation chamber 201, a vortex preventer 228 is arranged on the top of the sewage pipe 226, a support rod 229 is fixedly connected to the bottom of the separation chamber 201, four support rods 229 are arranged, and a foot pad 230 is fixedly connected to the bottom of the support rod 229, four foot pads 230 are arranged, and the vortex preventer 228 can prevent gas vortexes formed during liquid discharge.

[0028] In this scheme, a petrochemical multi-stage gas-solid separation device is used to transport the flue gas from the liquid inlet pipe 217 to the separation chamber 201 by using the first support rod 209. After entering the separation chamber 201, due to the sudden decrease in speed, the stranded liquid or large droplets are separated due to gravity and directly settle to the bottom of the distributor 225 for liquid accumulation, thereby completing the primary separation and improving the effect of the primary separation. The flue gas after the primary separation carries smaller droplets and flows upward at a lower flow rate to the air flow outlet. At this time, due to the effect of gravity, the droplets settle downward and separate from the air flow, completing the secondary separation. The mist collector 221 is used to capture the smaller droplets that have not been separated in the sedimentation stage. The tiny droplets collide and condense here, and finally combine into larger droplets and sink to the bottom of the distributor 225. The gas is discharged from the gas outlet pipe 206, the liquid is discharged from the water outlet pipe 215, and the solid impurities are discharged from the sewage pipe 226.

[0029] 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 petrochemical multi-stage gas-solid separation device, comprising a receiving bottom plate (1), characterized in that: A gas-solid separation component (2) is fixedly connected to the top of the receiving bottom plate (1); The gas-solid separation component (2) comprises a separation chamber (201), a fixed plate (220) is fixedly connected inside the separation chamber (201), a mist collector (221) is fixedly connected to the side of the fixed plate (220), a disc (223) is fixedly connected inside the separation chamber (201), a connecting pipe (222) is fixedly connected to the top of the disc (223), a downcomer (224) is fixedly connected to the bottom of the disc (223), and a distributor (221) is fixedly connected to the bottom of the mist collector (221). (225), a liquid pump (219) is installed on the top of the supporting base plate (1), the top of the liquid pump (219) is fixedly connected to a liquid inlet pipe (217), the top of the liquid inlet pipe (217) is fixedly connected to a fourth valve (218), the liquid inlet pipe (217) extends to the interior of the separation bin (201), the side of the separation bin (201) is fixedly connected to a control box (203), and the side of the control box (203) is fixedly connected to a liquid level controller (204) and an instrument air source key (205).

2. The petrochemical multi-stage gas-solid separation equipment according to claim 1, characterized in that: The top of the separation chamber (201) is fixedly connected to an air outlet pipe (206), the top of the air outlet pipe (206) is fixedly connected to a first valve (207), the air outlet pipe (206) extends to the interior of the separation chamber (201), the side of the separation chamber (201) is fixedly connected to an oil outlet pipe (213), the top of the oil outlet pipe (213) is fixedly connected to a second valve (214), and the oil outlet pipe (213) extends to the interior of the separation chamber (201).

3. The petrochemical multi-stage gas-solid separation equipment according to claim 1, characterized in that: A first support rod (209) is fixedly connected to the side of the separation chamber (201), a safety valve (210) is fixedly connected to the top of the first support rod (209), a second support rod (211) is fixedly connected to the side of the separation chamber (201), and a pressure gauge (212) is fixedly connected to the top of the second support rod (211).

4. The petrochemical multi-stage gas-solid separation equipment according to claim 1, characterized in that: A water outlet pipe (215) is fixedly connected to the side of the separation bin (201), a third valve (216) is fixedly connected to the top of the water outlet pipe (215), and the water outlet pipe (215) extends to the interior of the separation bin (201).

5. The petrochemical multi-stage gas-solid separation equipment according to claim 1, characterized in that: The top of the separation bin (201) is fixedly connected with a hanging ring (208), and two hanging rings (208) are provided. The side of the separation bin (201) is fixedly connected with a reinforcing rod (202).

6. The petrochemical multi-stage gas-solid separation equipment according to claim 1, characterized in that: The bottom of the separation chamber (201) is fixedly connected to a sewage pipe (226), the top of the sewage pipe (226) is fixedly connected to a fifth valve (227), the sewage pipe (226) extends to the interior of the separation chamber (201), and the top of the sewage pipe (226) is provided with a vortex preventer (228).

7. The petrochemical multi-stage gas-solid separation equipment according to claim 1, characterized in that: The bottom of the separation bin (201) is fixedly connected with a support rod (229), and four support rods (229) are provided.

8. The petrochemical multi-stage gas-solid separation equipment according to claim 7, characterized in that: A foot pad (230) is fixedly connected to the bottom of the support rod (229), and four foot pads (230) are provided.

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