Double-desulfurizer desulfurization system capable of comprehensively utilizing carbide slag

Abstract

The utility model discloses a double desulfurizer desulfurization system for comprehensive utilization of carbide slag, which relates to the technical field of flue gas desulfurization, and comprises a desulfurization tower, a water inlet pipeline and a gas inlet pipeline, one side of the bottom end of the desulfurization tower is butted with the water inlet pipeline, and the middle part of the outer wall of the desulfurization tower is connected with the gas inlet pipeline. When the double-desulfurizer desulfurization system capable of comprehensively utilizing the carbide slag is used, flue gas can still be continuously purified during maintenance, so that the maintenance work is prevented from influencing the purification efficiency of the flue gas, the working efficiency is further improved, and a solution uniformly flows to the flue gas to be treated; according to the double-desulfurizer desulfurization system for comprehensive utilization of the carbide slag, the effect of conveniently improving the working efficiency and evenly distributing flow is achieved, impurity particles in the flue gas are blocked through the auxiliary mechanism and prevented from being discharged along with the flue gas, then the purification quality of the flue gas is improved, and therefore the effect of conveniently filtering impurities is achieved when the double-desulfurizer desulfurization system for comprehensive utilization of the carbide slag is used.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas desulfurization, in particular to a double desulfurization agent desulfurization system for comprehensive utilization of carbide slag. Background Art

[0002] Calcium carbide slag is the waste residue with calcium hydroxide as the main component after acetylene gas is obtained by hydrolyzing calcium carbide. Its main component is calcium hydroxide, and it also contains a small amount of unreacted calcium carbide, hydrogen sulfide, phosphine and other impurities, as well as various additives used in the production process of acetylene gas. The double desulfurizer desulfurization system is a flue gas purification technology, which is a desulfurization and denitrification process using calcium carbide slag. It mainly treats the flue gas so that the flue gas emissions meet environmental protection standards, and the desulfurization tower is a very common processing equipment in the desulfurization system.

[0003] During the flue gas emission process, in order to reduce environmental pollution, when the desulfurization system is needed for assistance, water is first introduced into the carbide slag solution area and the limestone solution area through the water inlet pipe for mixing, and then the flue gas is introduced into the desulfurization tower through the air inlet pipe, and then the conveying pump is started to guide the mixed solution in the carbide slag solution area to the top of the flue gas, thereby effectively reducing the emission concentration of sulfur dioxide and nitrogen oxides in the flue gas, and then the solution entrained in the flue gas is removed by the demister, and finally the flue gas that meets environmental protection standards is guided out of the desulfurization tower through the exhaust pipe; but during the use of the desulfurization tower, as the use time increases, in order to ensure the stability of the desulfurization tower, it is necessary to inspect and maintain it regularly. However, when the staff inspects the desulfurization tower, it is necessary to stop the flue gas purification work, which inevitably affects the flue gas purification efficiency and thus affects the use of the desulfurization tower. Utility Model Content

[0004] The utility model aims to provide a double desulfurization agent desulfurization system for comprehensive utilization of carbide slag to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dual desulfurization agent desulfurization system for comprehensive utilization of carbide slag, comprising a desulfurization tower, a water inlet pipe and an air inlet pipe, wherein one side of the bottom end of the desulfurization tower is connected to the water inlet pipe, and the middle part of the outer wall of the desulfurization tower is connected to the air inlet pipe, and the bottom end of the desulfurization tower is provided with a carbide slag solution area and a limestone solution area in sequence from top to bottom, a delivery pump B is connected to the side of the bottom end of the desulfurization tower away from the water inlet pipe, and the top of the delivery pump B is connected to a jet pipe B, a demister is installed at the top of the desulfurization tower, and exhaust pipes are connected to both sides of the top of the desulfurization tower.

[0006] Preferably, the bottom end of the desulfurization tower is connected to a delivery pump A through a support platform, and a jet pipe A is connected to the middle of the outer wall of the delivery pump A.

[0007] Preferably, a storage box is installed in the middle of the inner wall of the desulfurization tower, and an outlet hole is opened on the outer wall of the storage box.

[0008] Preferably, a diversion box is welded to the bottom end of the storage box, and a diversion hole is opened on the outer wall of the diversion box.

[0009] Preferably, a diverter plate is welded on the bottom end of the diverter box, and the diverter plates are evenly spaced on the diverter box.

[0010] Preferably, an auxiliary mechanism is provided on the outer wall of the exhaust duct, and the auxiliary mechanism includes a filter seat, a filter screen, a fixing seat, a fixing pin and a support frame, and the filter seat is sleeved on the top end of the exhaust duct.

[0011] Preferably, a filter screen is connected inside the filter seat, and a fixing seat is connected to the bottom end of the outer wall of the filter seat.

[0012] Preferably, a fixing pin is butt-jointed at the bottom end of the fixing seat, and the fixing pin is connected to the support frame through a fixing hole.

[0013] Compared with the prior art, the beneficial effects of the utility model are: when the double desulfurizer desulfurization system for comprehensive utilization of carbide slag is in use, the flue gas can continue to be purified during maintenance, preventing the maintenance work from affecting the purification efficiency of the flue gas, thereby improving the work efficiency, and making the solution flow evenly to the flue gas to be treated, thereby facilitating the improvement of work efficiency and uniform diversion. The impurity particles in the flue gas are blocked by auxiliary mechanisms to prevent them from being discharged along with the flue gas, thereby improving the purification quality of the flue gas, thereby facilitating the filtering of impurities when the double desulfurizer desulfurization system for comprehensive utilization of carbide slag is in use.

[0014] 1. During the flue gas emission process, in order to reduce environmental pollution, when the desulfurization system is needed for assistance, when the carbide slag solution area stops working for maintenance, start the delivery pump A to guide the solution in the limestone solution area to the top of the flue gas through the jet pipe A, so that the flue gas purification work continues, and then the flue gas can still be purified during the maintenance, thereby improving the work efficiency, and through the mutual cooperation of the lead-out hole, the diversion hole and the diversion plate, the solution flows evenly to the flue gas to be treated, so that when the double desulfurization agent desulfurization system for comprehensive utilization of carbide slag is used, it plays a role in improving the work efficiency and uniform diversion;

[0015] 2. During the flue gas emission process, in order to reduce environmental pollution, when the desulfurization system is needed for assistance, the impurity particles in the flue gas are first blocked by the filter to prevent them from being discharged along with the flue gas, thereby improving the purification quality of the flue gas, and moving the filter seat to disconnect the fixing pin from the support frame. The filter seat can be removed to clean the filter, thereby preventing the filter from being blocked and affecting the filtering effect of the impurity particles. When the dual desulfurizer desulfurization system for comprehensive utilization of carbide slag is used, it is convenient to filter impurities and clean the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the main cutaway structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the main cutaway structure of the diverter box of the utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the storage box of the utility model;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the storage box of the utility model when viewed from above;

[0021] Figure 6 This is a bottom-up three-dimensional structural diagram of the flow divider of the utility model;

[0022] Figure 7 It is a schematic diagram of the cross-sectional structure of the auxiliary mechanism of the utility model.

[0023] In the figure: 1. desulfurization tower; 2. water inlet pipe; 3. air inlet pipe; 4. carbide slag solution area; 5. limestone solution area; 6. delivery pump A; 7. delivery pump B; 8. jet pipe A; 9. jet pipe B; 10. demister; 11. exhaust pipe; 12. storage box; 13. outlet hole; 14. diverter box; 15. diverter hole; 16. diverter plate; 17. auxiliary mechanism; 1701. filter seat; 1702. filter net; 1703. fixing seat; 1704. fixing pin; 1705. support frame. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 6 The utility model provides a technical solution: a dual desulfurization agent desulfurization system for comprehensive utilization of carbide slag, comprising a desulfurization tower 1, a water inlet pipeline 2 and an air inlet pipeline 3, one side of the bottom end of the desulfurization tower 1 is connected to the water inlet pipeline 2, and the middle part of the outer wall of the desulfurization tower 1 is connected to the air inlet pipeline 3, and the bottom end of the desulfurization tower 1 is sequentially provided with a carbide slag solution area 4 and a limestone solution area 5 from top to bottom, a delivery pump B7 is connected to the side of the bottom end of the desulfurization tower 1 away from the water inlet pipeline 2, and the top of the delivery pump B7 is connected to a jet pipeline B9, a demister 10 is installed at the top end of the desulfurization tower 1, and exhaust pipelines 11 are connected to both sides of the top end of the desulfurization tower 1; the bottom end of the desulfurization tower 1 is connected to the delivery pump B7 through a support platform. A delivery pump A6 is provided, and a jet pipe A8 is connected to the middle of the outer wall of the delivery pump A6; a storage box 12 is installed in the middle of the inner wall of the desulfurization tower 1, and an outlet hole 13 is provided on the outer wall of the storage box 12; a diverter box 14 is welded at the bottom of the storage box 12, and a diverter hole 15 is provided on the outer wall of the diverter box 14; a diverter plate 16 is welded at the bottom of the diverter box 14, and the diverter plates 16 are evenly spaced on the diverter box 14; an outlet cavity corresponding to the diverter box 14 is provided at the bottom of the storage box 12, and the tops of the jet pipes A8 and B9 are connected to the desulfurization tower 1, the carbide slag solution area 4 contains a mixed solution of carbide slag and water, and the limestone solution area 5 contains a mixed solution of limestone and water.

[0026] During specific implementation, in order to reduce environmental pollution, when the desulfurization system needs to be assisted during the flue gas emission process, in order to ensure the stability of the desulfurization tower 1 during operation, it is necessary to perform regular maintenance on the carbide slag solution area 4 and the limestone solution area 5. When the carbide slag solution area 4 stops working, the delivery pump A6 is started. Since the delivery pump A6 is connected to the jet pipe A8, the solution in the limestone solution area 5 is guided to the top of the flue gas through the jet pipe A8, so that the flue gas purification work continues. When the limestone solution area 5 is overhauled, the delivery pump B7 is started to guide the solution in the carbide slag solution area 4 to the top of the flue gas through the jet pipe B9, so that the flue gas can still be purified during the maintenance, so as to prevent the maintenance work from affecting the purification efficiency of the flue gas, thereby improving the work efficiency.

[0027] Because the storage box 12 is connected to the desulfurization tower 1 through the outlet cavity, when the solution enters the storage box 12, the solution will flow to the inside of the diverter box 14, and because the outer wall of the storage box 12 is provided with an outlet hole 13, and the outer wall of the diverter box 14 is provided with a diverter hole 15, at this time, the solution is uniformly led out of the storage box 12 through the outlet hole 13, and the solution is uniformly led out of the diverter box 14 through the diverter hole 15. Because the diverter plate 16 is welded at the bottom of the diverter box 14, part of the solution drips into the flue gas along the diverter plate 16, and then there is no need to install multiple nozzles, so that the solution can flow uniformly to the flue gas to be treated, so that when the dual desulfurization agent desulfurization system for comprehensive utilization of calcium carbide slag is used, it plays a role in facilitating the improvement of work efficiency and uniform diversion;

[0028] When limestone is made into pulp, limestone powder is purchased from outside and directly transported to the desulfurization site. The limestone is then fed into the silo by tank trucks. The limestone in the silo is then quantitatively fed into the pulping tank through a star feeder. Process water is added to prepare the slurry of the required concentration for desulfurization.

[0029] When calcium carbide slag is pulped, a forklift is used to directly add it into the coarse pulp pool for pulping. Then the coarse pulp pool is pumped to the rotary vibrating screen, and the fine slurry enters the fine pulp pool for storage.

[0030] See also Figure 1 , Figure 2 and Figure 7 It can be seen that an auxiliary mechanism 17 is arranged on the outer wall of the exhaust pipe 11, and the auxiliary mechanism 17 includes a filter seat 1701, a filter screen 1702, a fixing seat 1703, a fixing pin 1704 and a support frame 1705. The filter seat 1701 is sleeved on the top of the exhaust pipe 11; the filter screen 1702 is connected to the inside of the filter seat 1701, and the fixing seat 1703 is connected to the bottom end of the outer wall of the filter seat 1701; the fixing pin 1704 is connected to the bottom end of the fixing seat 1703, and the fixing pin 1704 is connected to the support frame 1705 through a fixing hole; the bottom end of the support frame 1705 is connected to the desulfurization tower 1, and the fixing seat 1703 is welded to the filter seat 1701.

[0031] In specific implementation, in order to reduce environmental pollution during flue gas emission, when the desulfurization system is needed for assistance, in order to filter impurity particles in the flue gas and improve the quality of flue gas purification, the filter seat 1701 is first sleeved on the outer wall of the exhaust pipe 11. Since the bottom end of the filter seat 1701 is connected to the fixing seat 1703, the fixing seat 1703 drives the fixing pin 1704 to connect with the support frame 1705, thereby limiting the filter seat 1701 to prevent the filter seat 1701 from moving at will. At this time, the impurity particles in the flue gas are blocked by the filter net 1702 to prevent them from being discharged along with the flue gas, thereby improving the purification quality of the flue gas.

[0032] As the use time increases, when the filter 1702 is clogged with impurity particles and needs to be cleaned, it is only necessary to move the filter seat 1701 upwards so that the fixing seat 1703 drives the fixing pin 1704 to disconnect from the support frame 1705, and the filter seat 1701 can be removed from the exhaust pipe 11. At this time, the filter 1702 can be cleaned to prevent the filter 1702 from being clogged and affecting the filtering effect of the impurity particles. In this way, when the dual desulfurization agent desulfurization system for comprehensive utilization of calcium carbide slag is used, it is convenient to filter impurities and clean the filter 1702.

[0033] In summary, when the dual desulfurization agent desulfurization system for comprehensive utilization of carbide slag is used, water is first introduced into the carbide slag solution area 4 and the limestone solution area 5 through the water inlet pipe 2 for mixing, and then the flue gas is introduced into the desulfurization tower 1 through the air inlet pipe 3, and then the delivery pump B7 is started to guide the mixed solution in the carbide slag solution area 4 to the top of the flue gas, thereby effectively reducing the emission concentration of sulfur dioxide and nitrogen oxides in the flue gas, and then the solution entrained in the flue gas is removed by the demister 10, and finally the flue gas that meets environmental protection standards is guided to the exhaust pipe 11. The desulfurization tower 1 is a prior art and will not be elaborated on here. The flue gas can still be purified during maintenance to prevent the maintenance work from affecting the flue gas purification efficiency, thereby improving the work efficiency. The impurity particles in the flue gas are blocked by the auxiliary mechanism 17 to prevent them from being discharged along with the flue gas, thereby improving the flue gas purification quality. Desulfurization can be carried out by limestone alone or by carbide slag slurry, or by a mixture of carbide slag and limestone. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dual desulfurization agent desulfurization system for comprehensive utilization of carbide slag, comprising a desulfurization tower (1), a water inlet pipeline (2) and an air inlet pipeline (3), characterized in that: A water inlet pipe (2) is connected to one side of the bottom end of the desulfurization tower (1), and an air inlet pipe (3) is connected to the middle of the outer wall of the desulfurization tower (1). A carbide slag solution area (4) and a limestone solution area (5) are arranged in sequence from top to bottom at the bottom end of the desulfurization tower (1). A delivery pump B (7) is connected to the side of the bottom end of the desulfurization tower (1) away from the water inlet pipe (2), and a jet pipe B (9) is connected to the top of the delivery pump B (7). A demister (10) is installed at the top end of the desulfurization tower (1), and exhaust pipes (11) are connected to both sides of the top end of the desulfurization tower (1).

2. A dual desulfurization agent desulfurization system for comprehensive utilization of carbide slag according to claim 1, characterized in that: The bottom end of the desulfurization tower (1) is connected to a delivery pump A (6) via a support platform, and a jet pipe A (8) is connected to the middle of the outer wall of the delivery pump A (6).

3. A dual desulfurization agent desulfurization system for comprehensive utilization of carbide slag according to claim 2, characterized in that: A storage box (12) is installed in the middle of the inner wall of the desulfurization tower (1), and an outlet hole (13) is opened on the outer wall of the storage box (12).

4. A dual desulfurization agent desulfurization system for comprehensive utilization of carbide slag according to claim 3, characterized in that: A diversion box (14) is welded to the bottom end of the storage box (12), and a diversion hole (15) is provided on the outer wall of the diversion box (14).

5. A dual desulfurization agent desulfurization system for comprehensive utilization of carbide slag according to claim 4, characterized in that: A shunt sheet (16) is welded to the bottom end of the shunt box (14), and the shunt sheets (16) are evenly spaced and distributed on the shunt box (14).

6. The dual desulfurization agent desulfurization system for comprehensive utilization of carbide slag according to claim 1 is characterized in that: The outer wall of the exhaust duct (11) is provided with an auxiliary mechanism (17), and the auxiliary mechanism (17) comprises a filter seat (1701), a filter screen (1702), a fixing seat (1703), a fixing pin (1704) and a support frame (1705), and the top end of the exhaust duct (11) is sleeved with the filter seat (1701).

7. A dual desulfurization agent desulfurization system for comprehensive utilization of carbide slag according to claim 6, characterized in that: The filter seat (1701) is internally connected to a filter screen (1702), and the bottom end of the outer wall of the filter seat (1701) is connected to a fixing seat (1703).

8. A dual desulfurization agent desulfurization system for comprehensive utilization of carbide slag according to claim 7, characterized in that: The bottom end of the fixing seat (1703) is butt-jointed with a fixing pin (1704), and the fixing pin (1704) is connected to a supporting frame (1705) via a fixing hole.

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