Carbon black tail gas denitrification pretreatment device

Abstract

The utility model discloses a denitrification pretreatment device for carbon black tail gas, and relates to the field of pretreatment of the carbon black tail gas. The carbon black tail gas denitrification pretreatment device comprises supporting legs, a pretreatment unit and a gas conveying unit, the pretreatment unit is arranged above the supporting legs, the gas conveying unit is arranged in the pretreatment unit and comprises a gas inlet, a gas conveying pipe and a gas exhaust plate, one end of the gas conveying pipe is fixedly connected with the gas inlet, and the other end of the gas conveying pipe is fixedly connected with the gas exhaust plate. The two sets of exhaust plates are symmetrically arranged on the two sides of the gas conveying pipe, the exhaust plates are obliquely arranged, and the exhaust plates communicate with the gas conveying pipe. According to the anti-blocking coil pipe device for the high-pressure raw oil, the gas conveying pipe and the exhaust plate are arranged, so that carbon black tail gas can be more uniformly filtered by a plurality of filter bags, the problem that the filter bags at the gas inlet are easily blocked by particles and dust in the carbon black tail gas is avoided, the filtering efficiency is improved, and the service life of the filter bags is prolonged. And the maintenance frequency caused by the blockage of the filter bag is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to carbon black tail gas pretreatment technical field, concretely is a kind of carbon black tail gas's denitrification pretreatment device. BACKGROUND

[0002] Carbon black tail gas denitrification pretreatment is the key link of controlling air pollution in carbon black production process, and its core goal is to remove nitrogen oxides and particulate matters in tail gas, and simultaneously optimize gas composition to meet subsequent processing or discharge requirements.

[0003] Carbon black tail gas denitrification pretreatment is a multi-link collaborative system engineering, and dust removal, cooling, desulfurization and denitrification need to be considered. Since carbon black tail gas contains high concentration of carbon black particles and dust, direct discharge can seriously pollute the air, and can wear subsequent equipment, so carbon black tail gas needs to be filtered to facilitate subsequent work.

[0004] Some carbon black tail gas filters use bag filters, which can effectively filter carbon black particles and dust in carbon black tail gas. However, during the filtration of carbon black tail gas, the filter bag at the gas inlet of the bag filter is easily blocked by particles and dust in the carbon black tail gas, which not only reduces the filtration efficiency of the bag filter, but also increases the maintenance work. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a carbon black tail gas denitrification pretreatment device, which solves the problem that the filter bag at the gas inlet of the bag filter is easily blocked by particles and dust in the carbon black tail gas, which not only reduces the filtration efficiency of the bag filter, but also increases the maintenance work.

[0006] To achieve the above purpose, the utility model is implemented by the following technical solutions: a carbon black tail gas denitrification pretreatment device includes a leg, a pretreatment unit and a gas conveying unit, the pretreatment unit is arranged above the leg, the gas conveying unit is arranged inside the pretreatment unit, and the gas conveying unit includes:

[0007] Gas inlet;

[0008] Gas conveying pipe, one end of the gas conveying pipe is fixedly connected with the gas inlet;

[0009] Exhaust plate, the exhaust plate is arranged in two groups and symmetrically arranged on both sides of the gas conveying pipe, the exhaust plate is arranged obliquely, and the exhaust plate is communicated with the gas conveying pipe.

[0010] Preferably, the pretreatment unit includes:

[0011] Filter box;

[0012] The filter bag assembly is arranged in the interior of the filter box, and is used for filtering impurities of the carbon black tail gas.

[0013] The gas outlet is arranged on the top of the filter box.

[0014] The hopper is fixedly connected to the bottom of the filter box.

[0015] The discharge port is arranged on the bottom of the hopper.

[0016] Preferably, the filter box is fixedly connected to the top of the supporting leg.

[0017] Preferably, the filter bag assembly comprises a plurality of filter bags and a mounting plate, the plurality of filter bags are mounted on the mounting plate, and the mounting plate is fixedly connected in the filter box.

[0018] Preferably, a plurality of exhaust ports are arranged on the top of the exhaust plate, and the plurality of exhaust ports are located below the plurality of filter bags.

[0019] Preferably, the gas conveying unit further comprises:

[0020] The cooling guide plate is fixedly connected to the bottom of the exhaust plate.

[0021] The water conveying pipe is arranged on the bottom of the cooling guide plate.

[0022] The utility model discloses a carbon black tail gas's denitrification pretreatment device, it has the beneficial effect as follows:

[0023] 1, carbon black tail gas's denitrification pretreatment device, set up gas conveying pipe and exhaust plate, through setting up gas conveying pipe at the air inlet, the both sides of gas conveying pipe are symmetric and set up exhaust plate, and the exhaust plate has certain inclination, and a plurality of exhaust ports are arranged on the exhaust plate, and a plurality of exhaust ports are evenly distributed below a plurality of filter bags, so that carbon black tail gas can be more evenly filtered through a plurality of filter bags, avoid the filter bag of air inlet place and be easily blocked by the particle and dust in the carbon black tail gas that gushes in, not only improve the filtering efficiency, and reduce the number of maintenance due to filter bag blockage.

[0024] 2, carbon black tail gas's denitrification pretreatment device, set up cooling guide plate and water conveying pipe, through installing cooling guide plate at the bottom of exhaust plate, through conveying cold water to water conveying pipe, make cooling guide plate cooling, can then cool carbon black tail gas in the exhaust plate, can then condense water vapor in carbon black tail gas, reduce water vapor through filter bag, then reduce the filter bag blockage, improve the filtering effect, then improve the pretreatment effect of carbon black tail gas. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0026] Figure 1 It is a structural schematic diagram of the present application;

[0027] Figure 2 It is a structural schematic diagram of the pretreatment unit of the present application;

[0028] Figure 3 It is a structural schematic diagram of the gas conveying unit of the present application;

[0029] Figure 4 It is a plan view of the gas conveying unit of the present application.

[0030] In the figure: 1, leg; 2, pretreatment unit; 21, filter box; 22, filter bag assembly; 23, gas outlet; 24, hopper; 25, discharge port; 3, gas conveying unit; 31, gas inlet; 32, gas conveying pipe; 33, exhaust plate; 331, exhaust port; 34, cold guide plate; 35, water conveying pipe. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application is described clearly and completely, obviously, the described embodiments are some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0032] The embodiments of the present application disclose a carbon black tail gas denitrification pretreatment device.

[0033] Embodiment one

[0034] According to the drawings Figures 1-4 As shown in the figure, including leg 1, pretreatment unit 2 and gas conveying unit 3, pretreatment unit 2 is arranged above leg 1, gas conveying unit 3 is arranged inside pretreatment unit 2, and gas conveying unit 3 includes:

[0035] Gas inlet 31;

[0036] Gas conveying pipe 32, one end of gas conveying pipe 32 is fixedly connected with gas inlet 31;

[0037] The exhaust plate 33 is provided in two groups and symmetrically arranged on both sides of the gas conveying pipe 32. The exhaust plate 33 is arranged obliquely and communicates with the gas conveying pipe 32.

[0038] Further, the pretreatment unit 2 comprises:

[0039] The filter box 21;

[0040] The filter bag assembly 22 is arranged inside the filter box 21 and used for filtering impurities in the carbon black tail gas.

[0041] The gas outlet 23 is arranged on the top of the filter box 21.

[0042] The hopper 24 is fixedly connected to the bottom of the filter box 21.

[0043] The discharge port 25 is arranged at the bottom of the hopper 24.

[0044] Further, the filter box 21 is fixedly connected to the top of the support leg 1.

[0045] Further, the filter bag assembly 22 comprises a plurality of filter bags and a mounting plate. The plurality of filter bags are mounted on the mounting plate, and the mounting plate is fixedly connected in the filter box 21.

[0046] Further, a plurality of exhaust ports 331 are arranged on the top of the exhaust plate 33 and below the plurality of filter bags. The gas conveying pipe 32 is arranged at the gas inlet 31, and the exhaust plate 33 is symmetrically arranged on both sides of the gas conveying pipe 32 and has a certain inclination. A plurality of exhaust ports 331 are arranged on the exhaust plate 33 and uniformly distributed below the plurality of filter bags. The carbon black tail gas can be more uniformly filtered by the plurality of filter bags, and the problem that the filter bags at the gas inlet 31 are easily blocked by the particles and dust in the carbon black tail gas is avoided. The filtering efficiency is improved, and the frequency of maintenance due to filter bag blockage is reduced.

[0047] Embodiment Two

[0048] According to the drawings, Figures 1-4 The support leg 1, the pretreatment unit 2 and the gas conveying unit 3 are shown. The pretreatment unit 2 is arranged above the support leg 1, and the gas conveying unit 3 is arranged inside the pretreatment unit 2. The gas conveying unit 3 comprises:

[0049] The gas inlet 31;

[0050] The gas conveying pipe 32 is fixedly connected to one end of the gas inlet 31.

[0051] The exhaust plate 33 is arranged in two groups and symmetrically arranged on both sides of the gas conveying pipe 32, and the exhaust plate 33 is arranged to be inclined, and the exhaust plate 33 is communicated with the gas conveying pipe 32.

[0052] It is particularly disclosed that the gas conveying unit 3 further comprises:

[0053] The cooling guide plate 34 is fixedly connected to the bottom of the exhaust plate 33.

[0054] The water conveying pipe 35 is arranged at the bottom of the cooling guide plate 34, and by installing the cooling guide plate 34 at the bottom of the exhaust plate 33, the cooling guide plate 34 is cooled by conveying cold water into the water conveying pipe 35, thereby cooling the carbon black tail gas in the exhaust plate 33, thereby condensing the water vapor in the carbon black tail gas, reducing the water vapor passing through the filter bag, thereby reducing the filter bag blockage, improving the filtering effect, and thereby improving the pretreatment effect of the carbon black tail gas.

[0055] Working principle: the carbon black tail gas enters the gas conveying pipe 32 through the gas inlet 31, and then is transmitted to the exhaust plate 33 through the gas conveying pipe 32, and is discharged through the exhaust port 331 on the exhaust plate 33, and the carbon black tail gas is cooled by the cooling guide plate 34 in the exhaust plate 33, so that the carbon black tail gas is cooled and part of the water vapor is condensed, and the carbon black tail gas is filtered through multiple cloth bags and enters the next processing equipment through the top gas outlet 23 of the filter box 21.

[0056] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, and without departing from the spirit and scope of the present application, the present application can have various changes and improvements, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A denitrogenation pretreatment device for carbon black tail gas, comprising a leg (1), a pretreatment unit (2) and a gas conveying unit (3), the pretreatment unit (2) is arranged above the leg (1), and the gas conveying unit (3) is arranged inside the pretreatment unit (2), characterized in that, The gas conveying unit (3) comprises: an air inlet (31); a gas conveying pipe (32), one end of which is fixedly connected with the air inlet (31); a plurality of exhaust plates (33), which are symmetrically arranged on both sides of the gas conveying pipe (32) and are inclined, and which are in communication with the gas conveying pipe (32).

2. The device for denitrogenation pretreatment of carbon black tail gas according to claim 1, characterized in that, The pretreatment unit (2) comprises: a filter box (21); a filter bag assembly (22) arranged in the filter box (21) and used for filtering impurities in the carbon black tail gas; an air outlet (23) formed in the top of the filter box (21); a hopper (24) fixedly connected to the bottom of the filter box (21); a discharge port (25) arranged at the bottom of the hopper (24).

3. A device for denitrogenation pretreatment of carbon black tail gas according to claim 2, characterized in that The filter box (21) is fixedly connected to the top of the supporting leg (1).

4. The device for denitrogenation pretreatment of carbon black tail gas according to claim 2, characterized in that, The filter bag assembly (22) comprises a plurality of filter bags and a mounting plate, the plurality of filter bags are mounted on the mounting plate, and the mounting plate is fixedly connected in the filter box (21).

5. A device for denitrogenation pretreatment of carbon black tail gas according to claim 4, characterized in that A plurality of exhaust ports (331) are formed in the top of the exhaust plate (33) and are located below the plurality of filter bags.

6. A device for denitrogenation pretreatment of carbon black tail gas according to claim 5, characterized in that The gas conveying unit (3) further comprises: a cooling guide plate (34) fixedly connected to the bottom of the exhaust plate (33); a water conveying pipe (35) arranged at the bottom of the cooling guide plate (34).

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