CN210206323U - Air filter for formaldehyde production - Google Patents

Abstract

The utility model discloses an air filtering device for formaldehyde production, which comprises a frame, a liquid type dust filtering component, a pulse type dust filtering component and a drying component, wherein the pulse type dust filtering component is arranged in the frame; the liquid type dust filtering component and the drying component are both arranged in the frame; the liquid type dust filtering component is arranged right below the pulse type dust filtering component; the drying component is arranged right below the liquid type dust filtering component; the pulse type dust filtering component comprises a box body, a dust collecting hopper, a pulse valve group, a controller, a filter bag and a high-pressure gas generating device; the box body is divided into an upper box body chamber, a middle box body chamber and a lower box body chamber; the dust collecting hopper is arranged at the bottom end of the box body and communicated with the interior of the box body. The utility model discloses the time, utilize bag filter to carry out prefiltration, recycle the liquid formula and filter and carry out secondary filter, guarantee that the air dust is effectively got rid of the absorption, the completion of better assurance formaldehyde production.

Description

Air filter for formaldehyde production

Technical Field

The utility model relates to an air filter, specific air filter who is applicable to iron molybdenum method formaldehyde production usefulness that says so.

Background

The formaldehyde is widely applied in industry, and the existing formaldehyde production is completed by a plurality of processes. Among them, the iron-molybdenum method for producing formaldehyde is also called "air excess method" because it is operated outside the lower explosive limit in methanol-air, i.e., under the condition of excess air. The reaction is carried out at normal pressure and at the temperature of 250 ℃ to 400 ℃, so that side reactions are reduced, the conversion rate is increased, and the consumption is reduced.

In the above-mentioned production process, the clean air is required, for example, the dust content in the air is high, which reduces the efficiency of the reaction, and the formaldehyde obtained by the reaction contains dirty particles and needs to be filtered again.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough that prior art exists, provide an air filter for formaldehyde production who is applicable to use in iron molybdenum method formaldehyde production.

In order to achieve the above object, the utility model adopts the following technical scheme: an air filtering device for formaldehyde production comprises a rack, a liquid type dust filtering component, a pulse type dust filtering component and a drying component, wherein the pulse type dust filtering component is arranged in the rack; the liquid type dust filtering component and the drying component are both arranged in the frame; the liquid type dust filtering component is arranged right below the pulse type dust filtering component; the drying component is arranged right below the liquid type dust filtering component; the pulse type dust filtering component comprises a box body, a dust collecting hopper, a pulse valve group, a controller, a filter bag and a high-pressure gas generating device; the box body is divided into an upper box body chamber, a middle box body chamber and a lower box body chamber; the dust collecting hopper is arranged at the bottom end of the box body and communicated with the interior of the box body; the upper box body chamber is provided with a pulse valve bank; the pulse valve group is connected with a high-pressure gas production device through a pipeline; one side of the middle box body chamber is provided with an air inlet; a filter bag is fixedly arranged in the middle box body; the lower box body chamber is provided with an air outlet and a detection door; the bottom end of the dust hopper 301 is provided with an ash discharge port 310 with a door; the liquid type dust filtering component comprises a water tank, an air inlet pipe and an air outlet pipe; the water tank is designed in a sealing way, a liquid inlet and a liquid outlet are arranged in the water tank, and electric control valves are respectively arranged on the positions of the liquid outlet and the liquid inlet; the air inlet pipe is inserted into the water tank and is 50mm away from the bottom of the water tank; the air outlet pipe is arranged at the top end of the water tank and is communicated with the inner space of the water tank; the air inlet pipe is communicated with an air outlet in the pulse type dust filtering component; the drying component is a drying tank filled with drying media, the drying tank is provided with an air inlet and an air outlet, and the air inlet is communicated with the air outlet pipe.

The utility model discloses the time, utilize bag filter to carry out prefiltration, recycle the liquid formula and filter and carry out secondary filter, guarantee that the air dust is effectively got rid of the absorption, the completion of better assurance formaldehyde production.

Drawings

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

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

For the convenience of further understanding, the present invention will be further explained by referring to the embodiments shown in the drawings.

Example (b):

as shown in fig. 1, the utility model comprises a frame 1, a liquid type dust filtering component 2, a pulse type dust filtering component 3 and a drying component 4, wherein the pulse type dust filtering component 3 is arranged in the frame 1; the liquid type dust filtering component 2 and the drying component 4 are both arranged in the frame 1; the liquid type dust filtering component 2 is arranged right below the pulse type dust filtering component 3; the drying component 4 is arranged right below the liquid type dust filtering component 2; the pulse type dust filtering component 3 comprises a box body, a dust hopper 301, a pulse valve group 302, a controller 303, a filter bag and a high-pressure gas generating device 304; the tank is divided into an upper tank chamber 305, a middle tank chamber 306 and a lower tank chamber 307; the dust collecting hopper 301 is arranged at the bottom end of the box body and communicated with the interior of the box body; a pulse valve group 302 is arranged on the upper box body chamber 305; the pulse valve group 302 is connected with a high-pressure gas production device 304 through a pipeline; an air inlet 308 is arranged at one side of the middle box body chamber 306; a filter bag is fixedly arranged in the middle box body 306; the lower box chamber 307 is provided with an air outlet 309 and a detection door; the bottom end of the dust hopper 201 is provided with an ash discharge port 310 with a door; the liquid type dust filtering component 2 comprises a water tank 201, an air inlet pipe 202 and an air outlet pipe 203; the water tank 201 is designed in a sealing way, a liquid inlet and a liquid outlet are arranged in the water tank, and electric control valves are arranged on the positions of the liquid outlet and the liquid inlet; the air inlet pipe 202 is inserted into the water tank 201 and is 50mm away from the bottom of the water tank 201; the air outlet pipe 203 is arranged at the top end of the water tank 201 and is communicated with the inner space of the water tank 201; the air inlet pipe 202 is communicated with an air outlet 309 in the pulse type dust filtering component 3; the drying component 4 is a drying tank filled with a drying medium 401, and the drying tank is provided with an air inlet and an air outlet, wherein the air inlet is communicated with the air outlet pipe 203.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (1)

1. The utility model provides an air filter equipment of formaldehyde production usefulness which characterized in that: the device comprises a rack, a liquid type dust filtering component, a pulse type dust filtering component and a drying component, wherein the pulse type dust filtering component is arranged in the rack; the liquid type dust filtering component and the drying component are both arranged in the frame; the liquid type dust filtering component is arranged right below the pulse type dust filtering component; the drying component is arranged right below the liquid type dust filtering component; the pulse type dust filtering component comprises a box body, a dust collecting hopper, a pulse valve group, a controller, a filter bag and a high-pressure gas generating device; the box body is divided into an upper box body chamber, a middle box body chamber and a lower box body chamber; the dust collecting hopper is arranged at the bottom end of the box body and communicated with the interior of the box body; the upper box body chamber is provided with a pulse valve bank; the pulse valve group is connected with a high-pressure gas production device through a pipeline; one side of the middle box body chamber is provided with an air inlet; a filter bag is fixedly arranged in the middle box body; the lower box body chamber is provided with an air outlet and a detection door; the bottom end of the dust collecting hopper (301) is provided with an ash discharging port (310) with a door; the liquid type dust filtering component comprises a water tank, an air inlet pipe and an air outlet pipe; the water tank is designed in a sealing way, a liquid inlet and a liquid outlet are arranged in the water tank, and electric control valves are respectively arranged on the positions of the liquid outlet and the liquid inlet; the air inlet pipe is inserted into the water tank and is 50mm away from the bottom of the water tank; the air outlet pipe is arranged at the top end of the water tank and is communicated with the inner space of the water tank; the air inlet pipe is communicated with an air outlet in the pulse type dust filtering component; the drying component is a drying tank filled with drying media, the drying tank is provided with an air inlet and an air outlet, and the air inlet is communicated with the air outlet pipe.

Images