Semi-dry desulfurization testing device

Abstract

The utility model relates to the technical field of desulfurization testing devices, in particular to a semi-dry desulfurization testing device which comprises an airflow pipe, an index meter, an air pipe, an electromagnetic valve, a gas pipe, a dust removal bag, a separation tank and a discharge pipe, the gas flow pipe is formed by sequentially connecting the Venturi mixing pipe, the treatment pipe and the reaction pipe from bottom to top and used for guiding gas flow into the device for multi-stage reaction, the index meter can penetrate into all positions for gas flow monitoring along with flowing of the gas flow, gas-solid separation is carried out on flue gas through the dust removal bag and the gas pipe, and the gas-solid separation efficiency is improved. The separation tank is arranged at the lower end of the dust removal bag, so that heat flow can be guided to rise, meanwhile, the solidified materials are crushed and settled, the overall test treatment effect is improved, and the influence of water vapor is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization testing devices, in particular to a semi-dry desulfurization testing device. Background Art

[0002] Semi-dry desulfurization is a desulfurization technology between wet and dry methods, mainly suitable for flue gas treatment of small and medium-sized boilers. The semi-dry desulfurization test device is a device used to remove sulfur dioxide from flue gas. Its design and operation are based on specific process parameters.

[0003] Semi-dry desulfurization technology has the advantages of small footprint, low one-time investment, reliable operation and high desulfurization efficiency. It is suitable for the desulfurization of units of a certain scale. The boiler flue gas enters the absorption tower and mixes with the added water and absorbent to produce a desulfurization reaction. As the airflow flows, wet walls are easily generated, and local agglomeration is difficult to carry out maintenance, which reduces the overall maintenance and operation performance.

[0004] Therefore, it is necessary to design a semi-dry desulfurization test device. Utility Model Content

[0005] In order to overcome the problem that boiler flue gas enters the absorption tower and mixes with the added water and absorbent to produce desulfurization reaction, wet walls are easily produced as the airflow flows, local agglomeration occurs, it is difficult to carry out maintenance, and the overall maintenance and operation performance is reduced.

[0006] The technical solution of the utility model is: a semi-dry desulfurization test device, comprising an airflow pipe, an index meter, an air pipe, an electromagnetic valve, a gas pipe, a dust removal bag, a separation tank and a discharge pipe; the airflow pipe is provided with index meters that penetrate into various positions at the side ends from bottom to top, an air pipe is connected to the outer side of the upper part of the gas pipe, a dust removal bag is connected to the middle part of the air pipe, a gas pipe is connected to the end of the air pipe, a discharge pipe is connected to the lower end of the gas pipe, a separation tank is provided at the lower end of the dust removal bag, and an electromagnetic valve is provided between the air pipe and the dust removal bag.

[0007] Preferably, the airflow tube consists of a Venturi mixing tube, a treatment tube and a reaction tube, which are connected in sequence from bottom to top, a node ring is provided between the Venturi mixing tube, the treatment tube and the reaction tube, and the lower end of the Venturi mixing tube is connected to a smoke inlet pipe.

[0008] Preferably, a first fixing frame is provided on the top of the venturi mixing tube, a first fixing sleeve is provided at the center of the first fixing frame, a first rotating rod is provided at the center of the first fixing sleeve, a first signal device is provided on the top of the first rotating rod, and a plurality of groups of breaking plates are provided in a circular manner from bottom to top on the outer end of the first rotating rod, and air flow holes are distributed on the surface of the breaking plates.

[0009] Preferably, a first electrically-controlled switch is fixedly provided on the outer side of the venturi mixing tube, a first cable extending to a first signal device is provided on the outer end of the first electrically-controlled switch, a heating coil is provided on the side wall of the venturi mixing tube, and a second electrically-controlled switch is electrically provided on the outer end of the heating coil.

[0010] Preferably, a probe rod extending into the airflow tube is provided at one end of the index meter, a probe is provided at the center of the probe rod, and a flow meter electrically connected to the probe is provided at the center of the index meter.

[0011] Preferably, a valve body is provided at the lower end of the electromagnetic valve, a wireless valve controller and an antenna are provided at the top of the electromagnetic valve, an expansion rubber ring is provided between the dust removal bag and the separation tank, and a spring rubber damping layer is provided inside the expansion rubber ring.

[0012] Preferably, a second fixing frame is provided at the mouth of the separation tank, a second fixing sleeve is provided at the center of the second fixing frame, a second rotating rod is provided at the center of the second fixing sleeve, a second signal device is provided on the top of the second rotating rod, a plurality of groups of extension rods are provided in a circular pattern from bottom to top on the outer end of the second rotating rod, a brush plate is provided at the end of the extension rod, a plurality of groups of brush strips are linearly provided on one side of the brush plate close to the side wall of the separation tank, a filter plate is provided in the middle of the extension rod, filter holes are distributed on the filter plate, a third electric control switch is fixedly provided on the outer side of the separation tank, and a second cable extending to the second signal device is provided at the outer end of the third electric control switch.

[0013] Beneficial effects of the utility model:

[0014] The airflow pipe is composed of a Venturi mixing tube, a treatment tube and a reaction tube connected in sequence from bottom to top, which is used to guide the airflow into the device for multi-stage reaction. As the airflow flows, the index meter can be used to monitor the airflow in depth at various positions. The dust removal bag and the air pipe are used to separate the flue gas from the gas and solid. The gas flow is controlled by an electromagnetic valve. The end of the air pipe is connected to a gas pipe for airflow guidance. The separation tank is located at the lower end of the dust removal bag to guide the heat flow to rise, and at the same time, the solidified material is crushed and settled, thereby increasing the overall test treatment effect and reducing the influence of water vapor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the semi-dry desulfurization test device of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the airflow pipe in the semi-dry desulfurization test device of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the Venturi mixing tube in the semi-dry desulfurization test device of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the index table in the semi-dry desulfurization test device of the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the separation tank in the semi-dry desulfurization test device of the utility model.

[0020] Explanation of reference numerals: 1. air flow pipe; 2. index meter; 3. air pipe; 4. electromagnetic valve; 5. gas pipe; 6. dust bag; 7. separation tank; 8. discharge pipe; 101. venturi mixing tube; 102. treatment tube; 103. reaction tube; 104. riser; 105. node ring; 106. smoke inlet pipe; 107. first electric switch; 108. second electric switch; 109. first fixing frame; 110. heating coil; 111. first cable; 112. first signal device ; 113, first fixed sleeve; 114, first rotating rod; 115, breaking plate; 116, air flow hole; 201, probe rod; 202, flow meter; 401, valve body; 601, expansion rubber ring; 701, third electric control switch; 702, second fixed bracket; 703, second cable; 704, second fixed sleeve; 705, second signal device; 706, second rotating rod; 707, extension rod; 708, brush plate; 709, brush strip; 710, filter plate; 711, filter hole. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] See also Figure 1-Figure 5 The utility model provides an embodiment: a semi-dry desulfurization test device, comprising an airflow pipe 1, an index meter 2, an air pipe 3, an electromagnetic valve 4, a gas pipe 5, a dust bag 6, a separation tank 7 and a discharge pipe 8; the airflow pipe 1 is used to guide the airflow into the device for multi-stage reaction, and the airflow pipe 1 is provided with an index meter 2 for penetrating into various positions for airflow monitoring at the side ends from bottom to top, the upper outer side of the gas pipe 5 is connected to the air pipe 3 for diversion guidance, the middle part of the air pipe 3 is connected to the dust bag 6 for dust removal operation, the end of the air pipe 3 is connected to the gas pipe 5 for airflow guidance, the lower end of the gas pipe 5 is connected to the discharge pipe 8 for exhausting the airflow, the lower end of the dust bag 6 is provided with a separation tank 7 for crushing and settling solids, and an electromagnetic valve 4 for controlling the gas flow is provided between the air pipe 3 and the dust bag 6.

[0023] See also Figure 2-Figure 3In the present embodiment, the airflow tube 1 is composed of a Venturi mixing tube 101, a treatment tube 102 and a reaction tube 103, which are connected in sequence from bottom to top. A node ring 105 for reinforcement connection is provided between the Venturi mixing tube 101, the treatment tube 102 and the reaction tube 103. The lower end of the Venturi mixing tube 101 is connected to a smoke inlet pipe 106, and a first fixing frame 109 is provided on the top of the Venturi mixing tube 101. A first fixing sleeve 113 is provided at the center of the first fixing frame 109. A first rotating rod 114 is provided at the center of the first fixing sleeve 113. A first signal device 112 is provided on the top of the first rotating rod 114. A plurality of groups of scattering plates 115 are provided in a circumferential direction in sequence from bottom to top at the outer end of the first rotating rod 114, and airflow holes 116 are distributed on the surface of the scattering plates 115.

[0024] See also Figure 3-Figure 4 In this embodiment, a first electric switch 107 is fixedly provided on the outer side of the venturi mixing tube 101, and the model of the electric switch is NXB-63-2P-C63. The outer end of the first electric switch 107 is provided with a first cable 111 extending to a first signal device 112 for electrical control. A heating coil 110 is provided on the side wall of the venturi mixing tube 101, and a second electric switch 108 is electrically provided on the outer end of the heating coil 110. A probe rod 201 that penetrates into the airflow tube 1 is provided at one end of the index meter 2, and a probe is provided at the center of the probe rod 201. A flow meter 202 electrically connected to the probe is provided at the center of the index meter 2.

[0025] See also Figure 3-Figure 5 In this embodiment, as a preference, a valve body 401 is provided at the lower end of the electromagnetic valve 4, a wireless valve controller and an antenna are provided at the top of the electromagnetic valve 4, the model of the wireless valve controller is WI-CW002, an expansion rubber ring 601 is provided between the dust bag 6 and the separation tank 7, a spring rubber damping layer is provided inside the expansion rubber ring 601, a second fixing frame 702 is provided at the mouth of the separation tank 7, a second fixing sleeve 704 is provided at the center of the second fixing frame 702, a second rotating rod 706 is provided at the center of the second fixing sleeve 704, and the second rotating rod 706 A second signal device 705 is provided on the top, a plurality of extension rods 707 are provided in a circumferential direction from bottom to top on the outer end of the second rotating rod 706, a brush plate 708 is provided at the end of the extension rod 707, a plurality of brush strips 709 are linearly provided on one side of the brush plate 708 close to the side wall of the separation tank 7, a filter plate 710 is provided in the middle of the extension rod 707, filter holes 711 are distributed on the filter plate 710, a third electric-controlled switch 701 is fixedly provided on the outer side of the separation tank 7, and a second cable 703 extending to the second signal device 705 for electrical control is provided on the outer end of the third electric-controlled switch 701.

[0026] During operation, flue gas, desulfurizer and water are introduced through the smoke inlet pipe 106, and pass through the Venturi mixing tube 101. The first electric control switch 107 controls the first signal device 112 through the first cable 111, and the first rotating rod 114 drives the scattering plate 115 to rotate. The second electric control switch 108 drives the heating coil 110 to heat and increase the separation. The gas is accelerated through the scattering plate 115 and enters the interior of the reaction tube 103 to form a suspended bed layer. It enters the air pipe 3 through the riser 104 and enters the dust removal bag 6 synchronously. The third electric control switch 701 drives the second cable 703, so that the second signal device 705 controls the second rotating rod 706 to rotate, thereby driving the brush plate 708 and the filter plate 710 to rotate, so that overall cleaning and crushing and filtering can be performed. After a period of time, the antenna controls the wireless valve controller to open the electromagnetic valve 4, the airflow rises, the solids fall, the airflow enters the gas pipe 5, and is discharged from the exhaust pipe 8.

[0027] The airflow tube 1 is composed of a Venturi mixing tube 101, a processing tube 102 and a reaction tube 103 which are connected in sequence from bottom to top, and is used to guide the airflow into the device for multi-stage reaction. The dust removal bag 6 and the air pipe 3 are used to separate the flue gas into gas and solid. The gas flow is controlled by the electromagnetic valve 4. The end of the air pipe 3 is connected to a gas pipe 5 for airflow guidance. The separation tank 7 is located at the lower end of the dust removal bag 6 to guide the heat flow to rise, and at the same time, the solidified material is crushed and settled, thereby increasing the overall test treatment effect and reducing the influence of water vapor.

Claims

1. A semi-dry desulfurization test device, comprising an air flow tube (1); characterized in that: The invention also comprises an index gauge (2), an air pipe (3), an electromagnetic valve (4), a gas pipe (5), a dust removal bag (6), a separation tank (7) and a discharge pipe (8); the air flow pipe (1) is provided with index gauges (2) at various positions in sequence from bottom to top on the side ends; the upper outer side of the gas pipe (5) is connected to the air pipe (3); the middle part of the gas pipe (3) is connected to the dust removal bag (6); the end of the gas pipe (3) is connected to the gas pipe (5); the lower end of the gas pipe (5) is connected to the discharge pipe (8); the lower end of the dust removal bag (6) is provided with a separation tank (7); and an electromagnetic valve (4) is provided between the gas pipe (3) and the dust removal bag (6).

2. The semi-dry desulfurization test device according to claim 1 is characterized in that: The airflow tube (1) is composed of a Venturi mixing tube (101), a treatment tube (102) and a reaction tube (103); the Venturi mixing tube (101), the treatment tube (102) and the reaction tube (103) are connected in sequence from bottom to top; a node ring (105) is provided between the Venturi mixing tube (101), the treatment tube (102) and the reaction tube (103); and a smoke inlet tube (106) is provided at the lower end of the Venturi mixing tube (101).

3. The semi-dry desulfurization test device according to claim 2 is characterized in that: A first fixing frame (109) is provided at the top of the venturi mixing tube (101), a first fixing sleeve (113) is provided at the center of the first fixing frame (109), a first rotating rod (114) is provided at the center of the first fixing sleeve (113), a first signal device (112) is provided at the top of the first rotating rod (114), and a plurality of groups of scattering plates (115) are provided in a circular manner in sequence from bottom to top at the outer end of the first rotating rod (114), and air flow holes (116) are distributed on the surface of the scattering plates (115).

4. The semi-dry desulfurization test device according to claim 2 is characterized in that: A first electrically controlled switch (107) is fixedly provided on the outer side of the venturi mixing tube (101); a first cable (111) extending to a first signal device (112) is provided at the outer end of the first electrically controlled switch (107); a heating coil (110) is provided on the side wall of the venturi mixing tube (101); and a second electrically controlled switch (108) is electrically provided at the outer end of the heating coil (110).

5. The semi-dry desulfurization test device according to claim 1, characterized in that: A probe rod (201) is provided at one end of the index gauge (2) and is inserted into the airflow tube (1). A probe is provided at the center of the probe rod (201). A flow meter (202) electrically connected to the probe is provided at the center of the index gauge (2).

6. The semi-dry desulfurization test device according to claim 1, characterized in that: A valve body (401) is provided at the lower end of the electromagnetic valve (4), a wireless valve controller and an antenna are provided at the top of the electromagnetic valve (4), an expansion rubber ring (601) is provided between the dust removal bag (6) and the separation tank (7), and a spring rubber damping layer is provided inside the expansion rubber ring (601).

7. The semi-dry desulfurization test device according to claim 1, characterized in that: A second fixing frame (702) is provided at the mouth of the separation tank (7), a second fixing sleeve (704) is provided at the center of the second fixing frame (702), a second rotating rod (706) is provided at the center of the second fixing sleeve (704), a second signal device (705) is provided at the top of the second rotating rod (706), a plurality of groups of extension rods (707) are provided in a circular manner from bottom to top at the outer end of the second rotating rod (706), a brush plate (708) is provided at the end of the extension rod (707), a plurality of groups of brush strips (709) are linearly provided on one side of the brush plate (708) close to the side wall of the separation tank (7), a filter plate (710) is provided in the middle of the extension rod (707), filter holes (711) are distributed on the filter plate (710), a third electric control switch (701) is fixedly provided on the outer side of the separation tank (7), and a second cable (703) extending to the second signal device (705) is provided at the outer end of the third electric control switch (701).

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