Desulfurization and dust removal equipment for magnesium refining furnace

Abstract

The utility model discloses magnesium refining furnace desulfurization and dust removal equipment which comprises a dust removal box, the left side of the dust removal box is communicated with an air inlet pipe, the right side of the dust removal box is communicated with a desulfurization box, the left side of an inner cavity of the desulfurization box is fixedly connected with a spray pipe, and the right side of the spray pipe is communicated with a nozzle. The left side of the top of the desulfurization box is fixedly connected with a storage box, and the bottom of the storage box is communicated with a powder conveying pump. According to the device, dust in flue gas can be filtered through the dust removal box, and soda powder can be conveyed to the spray pipe through the powder conveying pump and sprayed through the spray nozzle through the desulfurization box, the spray pipe, the spray nozzle, the storage box and the powder conveying pump, so that the soda powder can generate neutralization reaction with sulfur dioxide; and through the arrangement of a filter screen, a fixing rod, a first motor, a rotating rod, a spring and a cleaning rod, soda powder can be filtered, the cleaning rod can clean the surface of the filter screen, and filter holes are prevented from being blocked.

Description

TECHNICAL FIELD

[0001] The utility model relates to environmental protection equipment technical field, concretely relates to a magnesium refining furnace desulfurization and dust removal equipment. BACKGROUND

[0002] Piyang method is the conventional process of crude magnesium production, and the process uses dolomite as the main raw material, calcines the raw material into calcined dolomite in a rotary kiln, and the main components of the calcined dolomite are calcium oxide and magnesium oxide. Silicon iron is used as a reducing agent, and fluorite is used as a catalyst. The calcined dolomite, silicon iron and fluorite powder are measured and proportioned, and then ground and pressed into pellets. The pellets are loaded into a reduction horizontal tank, and then several reduction tanks are loaded into the same reduction furnace. The internal temperature of the reduction furnace is heated to about 1250°C, and at the same time, the internal vacuum of the reduction tank is extracted and maintained for 8-10 hours. Under the above conditions, the magnesium oxide in the pellets is reduced to metallic magnesium. At high temperature, magnesium in the form of steam enters the condensation crystallization barrel at the front end of the reduction tank, and after cooling, crystalline magnesium, also known as crude magnesium, is formed. The reduction tank cover is opened, the crystallization barrel is removed, and after cooling, the magnesium ingot is pressed out with a magnesium pressing machine to obtain crude magnesium. The crude magnesium refining furnace uses gas heating crucible to melt the crude magnesium for refining, and obtains magnesium ingot with a certain purity. A large amount of smoke and dust is generated during the production of crude magnesium and the refining of magnesium ingot, and desulfurization and dust removal equipment is needed to treat the smoke and dust. During the refining process, harmful gases such as sulfur dioxide and chlorine gas are generated. The traditional way is to use a spray tower to purify the harmful gases, but the traditional spray treatment method is relatively simple and cannot effectively purify the sulfur dioxide in the flue gas, resulting in substandard treatment. Therefore, a magnesium refining furnace desulfurization and dust removal equipment is proposed to solve the above problems. SUMMARY

[0003] (I) Technical problems solved

[0004] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a magnesium refining furnace desulfurization and dust removal equipment with the advantages of good sulfur dioxide removal effect.

[0005] (II) Technical solutions

[0006] In order to achieve the above object, the utility model provides the following technical scheme, a kind of magnesium refining furnace desulfurization dust removal equipment and the technical scheme it is used is as follows: including dust removal box, the left side of the dust removal box is communicated with inlet pipe, the right side of the dust removal box is communicated with desulfurization tank, the left side of the desulfurization tank inner chamber is fixedly connected with spray pipe, the right side of the spray pipe is communicated with nozzle, the left side of the desulfurization tank top is fixedly connected with storage tank, the bottom of the storage tank is communicated with powder delivery pump, the right side of the desulfurization tank inner chamber is provided with filter screen, the inner chamber of the desulfurization tank is fixedly connected with fixed link, the left side of the fixed link is provided with first motor, the output shaft of the first motor is fixedly connected with rotating rod, the right side of the rotating rod is fixedly connected with spring, the right side of the spring is fixedly connected with cleaning rod, the bottom of the desulfurization tank is fixedly connected with discharge tank, the left side of the discharge tank is fixedly connected with second motor, the output end of the second motor is fixedly connected with discharge roller, the bottom of the dust removal box and desulfurization tank is communicated with downpipe, the bottom of the discharge tank is communicated with discharge pipe, the right side of the desulfurization tank is communicated with spray tower.

[0007] As a preferred scheme, the front side of the dust removal box is provided with a controller, and the surface of the downpipe is provided with an automatic valve.

[0008] As a preferred scheme, the number of spray pipes is two, and the shape of the spray pipe is a circular ring.

[0009] As a preferred scheme, the bottom of the powder delivery pump is communicated with a shunt pipe, and the bottom of the shunt pipe is communicated with the spray pipe.

[0010] As a preferred scheme, the outer side of the first motor is provided with a protective box, and the inner chamber of the spring is provided with a limiting telescopic rod.

[0011] As a preferred scheme, the left side of the inner chamber of the discharge tank is fixedly connected with a partition plate, and the discharge roller is movably connected with the partition plate through a bearing.

[0012] As a preferred scheme, the right side of the inner chamber of the desulfurization tank is fixedly connected with a detection rod, the left side of the detection rod is fixedly connected with a wind speed sensor, and the right side of the inner chamber of the desulfurization tank is provided with an activated carbon adsorbent.

[0013] (Three) beneficial effects

[0014] Compared with the prior art, the utility model provides a kind of magnesium refining furnace desulfurization dust removal equipment, with the following beneficial effects.

[0015] 1、Through the dust removal box, the dust in the flue gas can be filtered, through the desulfurization tank, the spray pipe, the nozzle, the storage tank and the powder conveying pump, the soda powder can be conveyed to the spray pipe by the powder conveying pump, sprayed through the nozzle, so that the soda powder can react with sulfur dioxide to treat the sulfur dioxide, through the filter screen, the fixed rod, the first motor, the rotating rod, the spring and the cleaning rod, the soda powder can be filtered, the cleaning rod can clean the surface of the filter screen to avoid blocking the filter hole, through the controller, the element operation is convenient, through the limiting telescopic rod, the spring can be supported to avoid bending when rotating, through the detection rod and the wind speed sensor, the wind speed on the right side of the filter screen can be detected, when the wind speed is low, the filter screen needs to be replaced in time, through the activated carbon adsorbent, the chlorine in the waste gas can be adsorbed and filtered.

[0016] 2、Through the setting of the discharge tank, the second motor, the discharge roller, the falling pipe and the discharge pipe, the falling pipe conveys the dust generated by cleaning the dust removal tank and the powder generated by cleaning the desulfurization tank to the discharge tank, the discharge roller discharges the waste generated by cleaning to the outside for subsequent process treatment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is an internal structure schematic diagram of the desulfurization tank of the utility model;

[0019] Figure 3 It is an internal structure schematic diagram of the discharge tank of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the utility model Figure 2 It is an enlarged view of A in the utility model.

[0021] In the figure: 1, dust removal tank; 2, inlet pipe; 3, desulfurization tank; 4, spray pipe; 5, nozzle; 6, storage tank; 7, powder conveying pump; 8, filter screen; 9, fixed rod; 10, first motor; 11, rotating rod; 12, spring; 13, cleaning rod; 14, discharge tank; 15, second motor; 16, discharge roller; 17, falling pipe; 18, discharge pipe; 19, spray tower; 20, controller; 21, shunt pipe; 22, protection box; 23, partition plate; 24, detection rod; 25, wind speed sensor; 26, activated carbon adsorbent. DETAILED DESCRIPTION

[0022] A plurality of embodiments of the present application will be disclosed below with reference to the drawings. For the purpose of clear illustration, many practical details will be described below. However, it should be understood that these practical details should not be used to limit the present application. That is, in some embodiments of the present application, these practical details are not necessary. In addition, for the purpose of simplifying the drawings, some conventional structures and components will be shown in the drawings in a simple schematic manner. Embodiment one:

[0023] Please refer to Figures 1-4 , in order to realize the purpose of desulfurization before spraying, the technical scheme is provided as follows: including dust removal box 1, the left side of dust removal box 1 is communicated with air inlet pipe 2, the right side of dust removal box 1 is communicated with desulfurization box 3, the left side of the inner cavity of desulfurization box 3 is fixedly connected with spray pipe 4, the right side of spray pipe 4 is communicated with nozzle 5, the left side of the top of desulfurization box 3 is fixedly connected with storage tank 6, the bottom of storage tank 6 is communicated with powder conveying pump 7, the right side of the inner cavity of desulfurization box 3 is provided with filter screen 8, the inner cavity of desulfurization box 3 is fixedly connected with fixed rod 9, the left side of fixed rod 9 is provided with first motor 10, the output shaft of first motor 10 is fixedly connected with rotating rod 11, the right side of rotating rod 11 is fixedly connected with spring 12, the right side of spring 12 is fixedly connected with cleaning rod 13, the front side of dust removal box 1 is provided with controller 20, the surface of falling pipe 17 is provided with automatic valve, the number of spray pipe 4 is two, and the shape of spray pipe 4 is circular ring, the bottom of powder conveying pump 7 is communicated with shunt pipe 21, the bottom of shunt pipe 21 is communicated with spray pipe 4, the outer side of first motor 10 is provided with protection box 22, the inner cavity of spring 12 is provided with limiting telescopic rod, the right side of the inner cavity of desulfurization box 3 is fixedly connected with detection rod 24, the left side of detection rod 24 is fixedly connected with wind speed sensor 25, the right side of the inner cavity of desulfurization box 3 is provided with activated carbon adsorbent 26, through the setting of dust removal box 1, the dust in the flue gas can be filtered, through the setting of desulfurization box 3, spray pipe 4, nozzle 5, storage tank 6 and powder conveying pump 7, soda powder can be conveyed to spray pipe 4 through powder conveying pump 7, sprayed through nozzle 5, so that soda powder can react with sulfur dioxide to treat sulfur dioxide, through the setting of filter screen 8, fixed rod 9, first motor 10, rotating rod 11, spring 12 and cleaning rod 13, soda powder can be filtered, cleaning rod 13 can clean the surface of filter screen 8 to avoid clogging the filter hole, through the setting of controller 20, the operation of the control element is convenient, through the setting of limiting telescopic rod, spring 12 can be supported to avoid bending when rotating, through the setting of detection rod 24 and wind speed sensor 25, the wind speed on the right side of filter screen 8 can be detected, when the wind speed is low, the filter screen 8 needs to be replaced in time, through the setting of activated carbon adsorbent 26, chlorine in waste gas can be adsorbed and filtered. Embodiment two:

[0024] Please refer to Figures 1-4 , in order to achieve the purpose of timely discharge cleaning, the embodiment provides the following technical scheme, specifically discloses: the bottom of the desulfurization tank 3 is fixedly connected with the discharge tank 14, the left side of the discharge tank 14 is fixedly connected with the second motor 15, the output end of the second motor 15 is fixedly connected with the discharge roller 16, the bottom of the dust removal tank 1 and the desulfurization tank 3 is communicated with the falling pipe 17, the bottom of the discharge tank 14 is communicated with the discharge pipe 18, the right side of the desulfurization tank 3 is communicated with the spray tower 19, the left side of the inner cavity of the discharge tank 14 is fixedly connected with the partition plate 23, the discharge roller 16 is movably connected with the partition plate 23 through the bearing, by setting the discharge tank 14, the second motor 15, the discharge roller 16, the falling pipe 17 and the discharge pipe 18, the falling pipe 17 transports the dust generated by cleaning the dust removal tank 1 and the powder generated by cleaning the desulfurization tank 3 to the discharge tank 14, the discharge roller 16 discharges the waste generated by cleaning to the outside, and the subsequent process is handled.

[0025] The working principle of the utility model is: the external dust enters the dust removal tank 1 through the air inlet pipe 2, the dust removal tank 1 filters the dust in the flue gas by the electrostatic precipitation mode, the filtered waste gas enters the desulfurization tank 3, the powder conveying pump 7 transports the dust-like soda in the storage tank 6 to the spray pipe 4, sprays in the inner cavity of the desulfurization tank 3 through the spray nozzle 5, the soda and sulfur dioxide carry out neutralization reaction, purify the sulfur dioxide, the first motor 10 drives the cleaning rod 13 to rotate on the surface of the filter screen 8 through the rotating rod 11, cleans the unreacted soda powder, the remaining waste gas is purified again by the activated carbon adsorbent 26, finally the waste gas is sprayed by the spray tower 19, the self-control valve on the surface of the falling pipe 17 is opened regularly, the dust removal tank 1 is cleaned regularly, the dust and waste generated by cleaning enter the discharge tank 14 through the falling pipe 17, the discharge roller 16 discharges the dust and waste to the outside, and the subsequent process is handled.

[0026] Finally, it should be noted that the above examples are only used to illustrate the technical scheme of the utility model, and not to limit the protection scope of the utility model, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical scheme of the utility model can be modified or replaced equivalently without departing from the essence and scope of the technical scheme of the utility model.

Claims

1. A desulphurization and dust removal apparatus for a magnesium refining furnace comprising a dust removal tank (1), characterized in that: The left side of the dust removal tank (1) is communicated with the air inlet pipe (2), the right side of the dust removal tank (1) is communicated with the desulfurization tank (3), the left side of the inner cavity of the desulfurization tank (3) is fixedly connected with the spray pipe (4), the right side of the spray pipe (4) is communicated with the nozzle (5), the left side of the top of the desulfurization tank (3) is fixedly connected with the storage tank (6), the bottom of the storage tank (6) is communicated with the powder conveying pump (7), the right side of the inner cavity of the desulfurization tank (3) is provided with the filter screen (8), the inner cavity of the desulfurization tank (3) is fixedly connected with the fixed rod (9), the left side of the fixed rod (9) is provided with the first motor (10), the output shaft of the first motor (10) is fixedly connected with the rotating rod (11), the right side of the rotating rod (11) is fixedly connected with the spring (12), the right side of the spring (12) is fixedly connected with the cleaning rod (13), the bottom of the desulfurization tank (3) is fixedly connected with the discharge tank (14), the left side of the discharge tank (14) is fixedly connected with the second motor (15), the output end of the second motor (15) is fixedly connected with the discharge roller (16), the bottom of the dust removal tank (1) and the desulfurization tank (3) is communicated with the falling pipe (17), the bottom of the discharge tank (14) is communicated with the discharge pipe (18), the right side of the desulfurization tank (3) is communicated with the spray tower (19).

2. A desulphurization and dust removal apparatus for a magnesium refining furnace according to claim 1, characterized in that: The front side of the dust removal tank (1) is provided with the controller (20), and the surface of the falling pipe (17) is provided with the automatic control valve.

3. A desulphurization and dust removal apparatus for a magnesium refining furnace according to claim 1, characterized in that: The number of the spray pipe (4) is two, and the shape of the spray pipe (4) is circular ring.

4. A desulphurization and dust removal apparatus for a magnesium refining furnace according to claim 1, characterized in that: The bottom of the powder conveying pump (7) is communicated with the shunt pipe (21), and the bottom of the shunt pipe (21) is communicated with the spray pipe (4).

5. A desulphurization and dust removal apparatus for a magnesium refining furnace according to claim 1, characterized in that: The outer side of the first motor (10) is provided with the protection box (22), and the inner cavity of the spring (12) is provided with the limiting telescopic rod.

6. A desulphurization and dust removal apparatus for a magnesium refining furnace according to claim 1, characterized in that: The left side of the inner cavity of the discharge tank (14) is fixedly connected with the partition plate (23), and the discharge roller (16) is movably connected with the partition plate (23) through the bearing.

7. A desulphurization and dust removal apparatus for a magnesium refining furnace according to claim 1, characterized in that: The right side of the inner cavity of the desulfurization tank (3) is fixedly connected with the detection rod (24), the left side of the detection rod (24) is fixedly connected with the wind speed sensor (25), and the right side of the inner cavity of the desulfurization tank (3) is provided with the activated carbon adsorbent (26).

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