Efficient and environment-friendly multistage purification equipment for carbon monoxide desulfurization liquid

Abstract

The utility model relates to the field of desulfurization liquid purification equipment, in particular to efficient and environment-friendly multistage purification equipment for carbon monoxide desulfurization liquid, and aims to solve the technical problems that a filter screen of the conventional desulfurization liquid purification equipment is mounted inside, so that sulfur left above the filter screen is inconvenient to collect; according to the technical scheme, the efficient and environment-friendly multistage purification equipment for the carbon monoxide desulfurization liquid comprises a purification box, an absorption barrel, an air oxidation reduction box, a stirring assembly, a filter screen, a solid sulfur collection assembly and a driving assembly; according to the utility model, the solid sulfur collecting component is additionally arranged in the desulfurizing liquid purifying equipment, and the driving component can drive the solid sulfur collecting component to move, so that the solid sulfur on the filter screen is collected on the premise of not disassembling the desulfurizing liquid purifying equipment, and the filter screen is prevented from being blocked by the solid sulfur; the problems that a filter screen of existing desulfurization liquid purification equipment is installed inside, and sulfur left above the filter screen is inconvenient to collect are solved.

Description

Technical Field

[0001] The utility model belongs to the field of desulfurization liquid purification equipment, and specifically relates to a highly efficient and environmentally friendly carbon monoxide desulfurization liquid multi-stage purification equipment. Background Art

[0002] In the steel, ceramic, glass and other industries, coke oven gas is widely used as a fuel for heating furnaces. The main components of coke oven gas include methane, ammonia, carbon monoxide, carbon dioxide and sulfide substances. During the combustion process, carbon monoxide and carbon dioxide are neither flammable nor combustion-supporting, so they will be discharged along with the sulfur dioxide produced. In order to avoid the adverse effects of carbon monoxide and sulfur dioxide on the people and objects around them, it is often necessary to absorb the carbon dioxide through desulfurization liquid. After the carbon monoxide is treated, for sustainable use, it is often necessary to use purification equipment to purify and reduce the desulfurization liquid.

[0003] At present, solid sulfur is often generated during the purification process of existing desulfurization liquid, which needs to be filtered to prevent it from clogging the purification device. However, in existing purification equipment, the filter is often installed inside, and it takes a lot of time to disassemble the purification equipment in order to collect and process the sulfur remaining on it.

[0004] Therefore, in order to address the problem that the filter of the above-mentioned existing desulfurization liquid purification equipment is installed inside, which is not convenient for disassembly and collection of the residual sulfur above, the existing purification equipment is improved by adding a solid sulfur collection component to collect the solid sulfur remaining above the filter without dismantling the equipment. Utility Model Content

[0005] In order to overcome the problem that the filter of the existing desulfurization liquid purification equipment is installed inside, it is not convenient to collect the sulfur remaining above the filter.

[0006] The technical solution of the utility model is: a highly efficient and environmentally friendly multi-stage purification equipment for carbon monoxide desulfurization liquid, comprising a purification box, an absorption barrel, an air redox box, a stirring component, a filter, a solid sulfur collection component, and a driving component; an absorption barrel filled with alkaline desulfurization liquid containing an oxidation catalyst is arranged in the purification box, a gas transport pipe penetrating the absorption barrel is inserted in the purification box, a stirring component is arranged in the absorption barrel, a filter screen arranged below the absorption barrel is installed in the purification box, a solid sulfur collection component installed in the purification box is arranged on the filter screen, a driving component for moving the solid sulfur collection component is arranged in the purification box, and an air redox box located below the filter screen is arranged in the purification box.

[0007] Preferably, by adding a solid sulfur collection component to the desulfurization liquid purification equipment, the driving component can drive the solid sulfur collection component to move, remove the solid sulfur above the residual filter from the filter and collect it, waiting for subsequent processing, and the stirring component can accelerate the speed at which the catalyst takes effect, so that the solid sulfur can be quickly precipitated, and the air redox box can restore the desulfurization liquid through redox reaction for easy reuse.

[0008] Preferably, the stirring assembly includes a stirring shaft and a No. 1 motor; the stirring shaft is inserted into the absorption barrel, and the bottom end of the absorption barrel is connected to the No. 1 motor on the stirring shaft with a transmission element. After the No. 1 motor is started, it drives the stirring shaft to rotate. The desulfurization liquid injected into the absorption barrel contains a catalyst, which can precipitate solid sulfur, making it convenient for subsequent treatment of the desulfurization liquid.

[0009] Preferably, an inverted L-shaped drain pipe with an electronic valve structure installed and arranged in a ring is fixedly connected to the outside of the absorption barrel, through which the desulfurization liquid with precipitated solid sulfur can flow into the filter below.

[0010] Preferably, the solid sulfur collection assembly includes a scraper and a collection box; a scraper is arranged above the filter, and a collection box connected to the purification box is installed on the outside of the purification box. The scraper moves to scrape the solid sulfur on the filter into the collection box for collection, thereby preventing solid sulfur from remaining on the filter.

[0011] Preferably, the solid sulfur collection assembly also includes a movable door, a support frame, and a No. 2 motor; a movable door is arranged in the purification box, the support frame is fixedly connected in the purification box, a rotating shaft movably inserted in the support frame is fixedly connected to the outer side of the movable door, the No. 2 motor is installed on the support frame, and the transmission element of the No. 2 motor is connected to the support frame. After the No. 2 motor is started, it can drive the movable door fixedly connected to the rotating shaft to rotate upward, exposing the through slot at the rear, so as to facilitate pushing the solid sulfur into the collection box. During filtering, the movable door can play a blocking role to prevent the desulfurization liquid from leaking from the through slot.

[0012] Preferably, the moving component includes a threaded rod and a limit column; the threaded rod is inserted into the purification box, the limit column is fixedly connected to the purification box, a screw hole matching the threaded rod is opened on the scraper, and the scraper is sleeved on the outside of the limit column. After the threaded rod rotates, under the restriction of the limit column, the scraper with the screw hole cannot rotate together with the threaded rod, but moves linearly along the threaded rod and the limit column.

[0013] Preferably, the moving component also includes a No. 3 motor; the No. 3 motor is installed on the outside of the purification box, and the transmission element of the No. 3 motor is connected to the threaded rod. The No. 3 motor drives the threaded rod to rotate, thereby achieving the effect of driving the scraper to move on the filter screen.

[0014] Beneficial effects of the utility model:

[0015] 1. By adding a solid sulfur collection component to the desulfurization liquid purification equipment, the driving component can drive the solid sulfur collection component to move. Without disassembling the desulfurization liquid purification equipment, the solid sulfur above the residual filter can be removed from the filter and collected for subsequent processing. This design can conveniently process the solid sulfur above the filter to prevent the solid sulfur from clogging the filter;

[0016] 2. This purification equipment integrates multiple processing functions such as absorption, precipitation, filtration, oxidation and reduction, and can perform multi-stage purification on the desulfurization liquid. At the same time, the purified desulfurization liquid can be reused, which has the environmental protection effect of avoiding waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The first three-dimensional structure schematic diagram of the utility model is a highly efficient and environmentally friendly multi-stage purification device for carbon monoxide desulfurization liquid;

[0018] Figure 2 The three-dimensional structure diagram of the purification box of the utility model of efficient and environmentally friendly carbon monoxide desulfurization liquid multi-stage purification equipment is shown;

[0019] Figure 3 The three-dimensional structure diagram of the absorption barrel of the multi-stage purification equipment for carbon monoxide desulfurization liquid of the utility model is shown;

[0020] Figure 4 The first stereoscopic structural schematic diagram of the cross section of the utility model of the highly efficient and environmentally friendly multi-stage purification equipment for carbon monoxide desulfurization liquid is shown;

[0021] Figure 5 The second stereoscopic structural schematic diagram of the cross section of the utility model of the highly efficient and environmentally friendly multi-stage purification equipment for carbon monoxide desulfurization liquid is shown;

[0022] Figure 6 What is shown is the third stereoscopic structural schematic diagram of the cross section of the utility model of the highly efficient and environmentally friendly carbon monoxide desulfurization liquid multi-stage purification equipment.

[0023] Explanation of the reference numerals: 1. Purification box; 2. Absorption barrel; 3. Air redox box; 4. Filter; 501. Stirring shaft; 502. Motor No. 1; 6. Drain pipe; 701. Scraper; 702. Collecting box; 703. Movable door; 704. Support frame; 705. Motor No. 2; 801. Threaded rod; 802. Limiting column; 803. Motor No. 3. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] See also Figure 1-4The utility model provides an embodiment: a highly efficient and environmentally friendly multi-stage purification device for carbon monoxide desulfurization liquid includes a purification box 1, an absorption barrel 2, an air oxidation-reduction box 3, a stirring component, a filter 4, a solid sulfur collection component, and a driving component; the purification box 1 is provided with an absorption barrel 2 filled with an alkaline desulfurization liquid containing an oxidation catalyst, a gas transport pipe penetrating the absorption barrel 2 is inserted in the purification box 1, a stirring component is provided in the absorption barrel 2, a filter 4 arranged below the absorption barrel 2 is installed in the purification box 1, and a solid sulfur installed in the purification box 1 is provided on the filter 4. The collecting component is provided with a driving component of a mobile solid sulfur collecting component in the purification box 1. The purification box 1 is provided with an air redox box 3 located below the filter screen 4. By adding a solid sulfur collecting component in the desulfurization liquid purification equipment, the driving component can drive the solid sulfur collecting component to move, remove the solid sulfur remaining above the filter screen 4 from the filter screen 4 and collect it to wait for subsequent processing. The stirring component can accelerate the speed at which the catalyst takes effect, so that the solid sulfur can be quickly precipitated. The air redox box 3 restores the desulfurization liquid through redox reaction for easy reuse.

[0026] See also Figure 3-4 In this embodiment, the stirring assembly includes a stirring shaft 501 and a No. 1 motor 502; the stirring shaft 501 is inserted into the absorption barrel 2, and the bottom end of the absorption barrel 2 is connected to the No. 1 motor 502 on the stirring shaft 501 with a transmission element, and the outer side of the absorption barrel 2 is fixedly connected to an inverted L-shaped discharge pipe 6 with an electronic valve structure installed and arranged in a ring shape. After the No. 1 motor 502 is started, it drives the stirring shaft 501 to rotate. The desulfurization liquid injected into the absorption barrel 2 contains a catalyst, which can precipitate solid sulfur, which is convenient for subsequent treatment of the desulfurization liquid. Through the discharge pipe 6, the desulfurization liquid with precipitated solid sulfur can flow into the filter 4 below.

[0027] See also Figure 4-6In this embodiment, the solid sulfur collection assembly includes a scraper 701 and a collection box 702; a scraper 701 is arranged above the filter 4, a collection box 702 which is connected to the purification box 1 is installed on the outside of the purification box 1, and the solid sulfur collection assembly also includes a movable door 703, a support frame 704, and a second motor 705; a movable door 703 is arranged in the purification box 1, and the support frame 704 is fixedly connected to the purification box 1, and a movable plug-in on the support frame 70 is fixedly connected to the outside of the movable door 703. 4, a second motor 705 is installed on the support frame 704, the transmission element of the second motor 705 is connected to the support frame 704, and the moving assembly includes a threaded rod 801 and a limit column 802; a threaded rod 801 is inserted into the purification box 1, and the limit column 802 is fixedly connected to the purification box 1, a screw hole matching the threaded rod 801 is opened on the scraper 701, and the scraper 701 is sleeved on the outer side of the limit column 802, and the moving assembly also includes a third motor 803; A No. 3 motor 803 is installed on the outside of the desulfurization box 1. The transmission element of the No. 3 motor 803 is connected to the threaded rod 801. The scraper 701 moves to scrape the solid sulfur on the filter 4 into the collection box 702 for collection to prevent the solid sulfur from remaining on the filter 4. The transmission element of the No. 2 motor 705 is connected to the support frame 704. After the No. 2 motor 705 is started, it can drive the movable door 703 fixedly connected to the rotating shaft to rotate upward, exposing the through-groove at the rear, so as to facilitate pushing the solid sulfur into the collection box 702. During filtration, the movable door 703 can play a blocking role to prevent the desulfurization liquid from leaking from the through-groove. After the threaded rod 801 rotates, under the restriction of the limiting column 802, the scraper 701 with a screw hole cannot rotate together with the threaded rod 801, but moves linearly along the threaded rod 801 and the limiting column 802. The threaded rod 801 is driven to rotate by the No. 3 motor 803, so as to achieve the effect of driving the scraper 701 to move on the filter 4.

[0028] When working, firstly, the desulfurization liquid with the catalyst added is injected into the absorption barrel 2, and then the exhaust gas is discharged into the absorption barrel 2 through the pipeline, and the sulfur-containing gas in the exhaust gas is absorbed by the desulfurization liquid, and the No. 1 motor 502 is started, and the No. 1 motor 502 drives the stirring shaft 501 to rotate, accelerating the reaction of the catalyst, so that solid sulfur is precipitated, and the desulfurized carbon monoxide is discharged through the pipeline on the other side, waiting for subsequent treatment;

[0029] The electronic valve is opened by the industrial computer, and the solid-liquid mixture in the absorption barrel 2 flows along the drain pipe 6 to the top of the filter 4. The solid sulfur is left above the filter 4, and the desulfurized liquid passes through the filter 4 and falls into the air oxidation-reduction box 3 below. Oxygen is injected into the air oxidation-reduction box 3, and the components of the desulfurized liquid are reduced through the oxidation-reduction reaction. Then, the purified desulfurized liquid is injected into the absorption barrel 2 again, waiting for the next use.

[0030] After the purification equipment has been used for a period of time, a lot of solid sulfur has accumulated on the filter 4. In order to avoid clogging of the filter 4, when the purification work is not in progress, start the No. 2 motor 705, which drives the movable door to rotate upward to expose the through groove, start the No. 3 motor 803, and under the restriction of the limit column 802, the scraper 701 moves on the threaded rod 801 to scrape the solid sulfur on the filter 4 into the collection box 702.

[0031] Through the above steps, a solid sulfur collection component is added to the desulfurization liquid purification equipment, and the driving component can drive the solid sulfur collection component to move. Without disassembling the desulfurization liquid purification equipment, the solid sulfur remaining above the filter 4 is removed from the filter 4 and collected, waiting for subsequent processing. Such a design can conveniently process the solid sulfur remaining above the filter 4 and prevent the solid sulfur from clogging the filter 4, so as to solve the problem that the filter 4 of the existing desulfurization liquid purification equipment is installed inside, which makes it inconvenient to collect the sulfur remaining above the filter 4.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. An efficient and environmentally friendly multi-stage purification device for carbon monoxide desulfurization liquid, comprising a purification box (1), an absorption barrel (2), and an air oxidation-reduction box (3); characterized in that: The invention also comprises a stirring assembly, a filter (4), a solid sulfur collection assembly, and a driving assembly; an absorption barrel (2) filled with an alkaline desulfurization liquid containing an oxidation catalyst is arranged in the purification box (1); a gas transport pipe penetrating the absorption barrel (2) is inserted in the purification box (1); a stirring assembly is arranged in the absorption barrel (2); a filter (4) arranged below the absorption barrel (2) is installed in the purification box (1); a solid sulfur collection assembly installed in the purification box (1) is arranged on the filter (4); a driving assembly for moving the solid sulfur collection assembly is arranged in the purification box (1); and an air oxidation reduction box (3) located below the filter (4) is arranged in the purification box (1).

2. The highly efficient and environmentally friendly multi-stage purification equipment for carbon monoxide desulfurization liquid according to claim 1 is characterized in that: The stirring assembly comprises a stirring shaft (501) and a first motor (502); the stirring shaft (501) is inserted into the absorption barrel (2), and a transmission element is connected to the bottom end of the absorption barrel (2) and is connected to the first motor (502) on the stirring shaft (501).

3. The highly efficient and environmentally friendly multi-stage purification equipment for carbon monoxide desulfurization liquid according to claim 1 is characterized in that: An inverted L-shaped liquid discharge pipe (6) installed with an electronic valve structure and arranged in a ring shape is fixedly connected to the outside of the absorption barrel (2).

4. The highly efficient and environmentally friendly multi-stage purification equipment for carbon monoxide desulfurization liquid according to claim 1 is characterized in that: The solid sulfur collection assembly comprises a scraper (701) and a collection box (702); the scraper (701) is arranged above the filter screen (4), and the collection box (702) which is connected to the purification box (1) is installed outside the purification box (1).

5. The highly efficient and environmentally friendly multi-stage purification equipment for carbon monoxide desulfurization liquid according to claim 4 is characterized in that: The solid sulfur collection assembly also includes a movable door (703), a support frame (704), and a second motor (705); the movable door (703) is arranged in the purification box (1), the support frame (704) is fixedly connected in the purification box (1), the outer side of the movable door (703) is fixedly connected to a rotating shaft movably plugged into the support frame (704), the support frame (704) is installed with the second motor (705), and the transmission element of the second motor (705) is connected to the support frame (704).

6. The highly efficient and environmentally friendly multi-stage purification equipment for carbon monoxide desulfurization liquid according to claim 4 is characterized in that: The moving assembly comprises a threaded rod (801) and a limiting column (802); the threaded rod (801) is inserted into the purification box (1), the limiting column (802) is fixedly connected inside the purification box (1), a screw hole matching the threaded rod (801) is opened on the scraper (701), and the scraper (701) is sleeved on the outside of the limiting column (802).

7. The highly efficient and environmentally friendly multi-stage purification equipment for carbon monoxide desulfurization liquid according to claim 6 is characterized in that: The moving assembly also includes a No. 3 motor (803); the No. 3 motor (803) is installed outside the purification box (1), and the transmission element of the No. 3 motor (803) is connected to the threaded rod (801).

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