CN212188570U - A square structure removes bed dry process desulphurization unit for flue gas desulfurization - Google Patents
A square structure removes bed dry process desulphurization unit for flue gas desulfurization Download PDFInfo
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- CN212188570U CN212188570U CN202020532594.1U CN202020532594U CN212188570U CN 212188570 U CN212188570 U CN 212188570U CN 202020532594 U CN202020532594 U CN 202020532594U CN 212188570 U CN212188570 U CN 212188570U
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Abstract
The utility model belongs to the technical field of dry desulfurization process, especially, a square structure moving bed dry desulfurization device for flue gas desulfurization, the following scheme is proposed at present, which comprises a reaction device, one end of the reaction device is provided with a reaction device gas outlet, the other end of the reaction device is provided with a reaction device gas inlet, a preposed baffle is fixedly installed in the reaction device, a moving bed packing layer is arranged in the reaction device, one side of the moving bed packing layer is fixedly connected with one side of the preposed baffle, one side of the moving bed packing layer is provided with a guide plate, a plurality of groups of moving packing beds are arranged in the moving bed packing layer, and a desulfurizer is arranged in the moving packing beds; the utility model discloses an optimize reaction unit, design out the reactor of a rectangle structure, have simple structure, simple to operate, shock resistance are strong, the loading is big, the windage is little, space utilization is high advantage.
Description
Technical Field
The utility model relates to a dry desulfurization process technical field especially relates to a square structure removes bed dry desulfurization device for flue gas desulfurization.
Background
The dry desulfurization is mainly oriented to the current desulfurization market, can be widely applied to the industries of thermal power, steel, coal, biomass boilers, cement kilns, coking and the like, can gradually replace the current mainstream wet process, and can solve the common defects of the wet desulfurization. Aiming at the dilemma of the prior desulfurization process, a practical desulfurization technology which is suitable for various desulfurization working conditions and has low treatment cost and no secondary pollutant generation is needed to be synthesized by utilizing raw materials with wide sources and develop, so that the dry moving bed desulfurization technology has great potential application value and process popularization prospect. The environment-friendly dry desulfurization reactant synthesized by low-cost raw materials such as calcium base, fly ash, auxiliary agent and the like is divided into a high-temperature desulfurizer and a low-temperature desulfurizer, SO that SO in industrial flue gas can be removed2、SO3And HCl and the like. The desulfurizer filled in the moving bed layer and the flue gas are subjected to cross-flow contact reaction by using a dry moving bed system, and the moving bed adopts a multi-stage multi-tower reactor, so that the gas-solid reaction efficiency is greatly improved, and the desulfurization efficiency is improved to more than 95%. The dry moving bed desulfurization system can achieve the same purification effect as the wet method, and simultaneously, the capital investment and the operating cost are lower than those of the conventional wet method and other desulfurization technologies.
The moving bed reactor belongs to a gas-solid phase non-catalytic reactor, the flow of fluid in the moving bed is more complicated than that of an empty pipe, the fluid flows in pore channels among solid particles, and the particles flow in a counter-flow bed and a cross-flow bed.
The moving bed developed at present mainly has more circular structures, but has the characteristics of less loading material amount, large volume and the like, and has the problems of large wind resistance, easy leakage and secondary dust emission, so a square-structure moving bed dry desulfurization device for flue gas desulfurization is provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a square structure moving bed dry desulfurization device for flue gas desulfurization.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a square moving bed dry desulfurization device for flue gas desulfurization comprises a reaction device, wherein one end of the reaction device is provided with a reaction device gas outlet, the other end of the reaction device is provided with a reaction device gas inlet, a front baffle is fixedly installed in the reaction device, a moving bed packing layer is arranged in the reaction device, one side of the moving bed packing layer is fixedly connected with one side of the front baffle, one side of the moving bed packing layer is provided with a guide plate, a plurality of groups of moving packed beds are arranged in the moving bed packing layer, a desulfurizer is arranged in the moving packed bed, a rear baffle is fixedly installed on the other side of the moving bed packing layer, the top of the reaction device is provided with a plurality of feed inlets, the top of the reaction device is provided with a plurality of material distribution channels, the top of each material distribution channel is communicated with the corresponding feed inlet, a plurality of discharge hoppers are fixedly mounted at the bottom of the reaction device, the discharge hoppers are respectively communicated with the movable packed beds, and discharge valves are arranged on the discharge hoppers.
Preferably, one side of reaction unit is provided with the inspection manhole, and the downthehole fixed mounting that can dismantle of inspection manhole has the access door, utilizes the inspection manhole can carry out the timing maintenance to reaction unit's inside.
Preferably, the desulfurizer is strip-shaped particles, and the size of the desulfurizer is 6-15 mm in width and 10-30 mm in length.
Preferably, the reaction apparatus has a rectangular structure.
The utility model is used for moving bed that adopts in the flue gas desulfurization treatment system has that the windage is big, easily leaks material, area is big, the material loads inhomogeneous, the load is few scheduling problem, produces the defect of secondary raise dust easily after long-time operation. The utility model discloses an optimize reaction unit, design out the reactor of a rectangle structure, have simple structure, simple to operate, shock resistance are strong, the loading is big, the windage is little, space utilization is high advantage. Mainly embodied in the following aspects:
reaction unit sets up to the rectangle structure, and inside sets up multiunit and removes the packed bed, utilizes the feed inlet can provide the desulfurizer among the removal packed bed and carries out the feed, very big improvement the space utilization who removes the packed bed.
The utility model discloses an adopt the structure of multiunit removal packed bed, can divide into the many parts with big amount of wind flue gas and handle, improved the throughput to big amount of flue gas, reduced the area of engineering.
The utility model discloses a can directly control the speed of unloading through the discharge valve, make things convenient for the renewal of desulfurizer.
The moving bed packing layer adopts the structural design of a front baffle, a guide plate and a rear baffle, so that the uniformity of a flue gas flow field and a velocity field is enhanced, and the resistance of a reaction device to the flue gas is reduced.
The strip-shaped granular desulfurizer is used as the filler of the movable packed bed, so that the reaction rate of materials can be improved, and the removal efficiency of sulfur dioxide in flue gas can be improved.
Because the moving bed structure adopted in the current market has the problems of low space utilization rate, inconsistent bed voidage due to gravity factors in feeding reactants, unstable purification efficiency and system pressure loss, the utility model optimizes and improves the structure of the radial reactor, so that the structure of the reaction device is changed from the traditional circular structure into the rectangular structure, the loading capacity of desulfurizer in unit volume and the retention time of flue gas in reactants are improved, and the safety and the stability of the device are improved by utilizing the discharging device of the reaction device, the utility model discloses a make dry desulfurization remove packed bed structure and obtain very big extension, more can satisfy operating condition's requirement, make the space of reaction unit each layer, dwell time and air current cross-section can satisfy the requirement of all kinds of operating modes, make its wide application in the SOx/NOx control trade become possible, compensatied not enough that reactant removes the bed existence in the existing market.
Drawings
Fig. 1 is a schematic structural view of a square moving bed dry desulfurization device for flue gas desulfurization according to the present invention;
fig. 2 is the schematic side view of fig. 1 of a square-structure moving bed dry desulfurization device for flue gas desulfurization according to the present invention.
In the figure: 1 reaction unit gas outlet, 2 reaction unit, 3 reaction unit gas inlet, 4 leading baffle, 5 moving bed packing layer, 6 guide plate, 7 trailing baffle, 8 moving packed bed, 9 feed inlet, 10 material distribution channel, 11 inspection manhole, 12 discharge valve, 13 discharge hopper.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example one
Referring to fig. 1-2, a square moving bed dry desulfurization device for flue gas desulfurization comprises a reaction device 2, one end of the reaction device 2 is provided with a reaction device gas outlet 1, the other end of the reaction device 2 is provided with a reaction device gas inlet 3, a front baffle 4 is fixedly installed in the reaction device 2, a moving bed packing layer 5 is installed in the reaction device 2, one side of the moving bed packing layer 5 is fixedly connected with one side of the front baffle 4, one side of the moving bed packing layer 5 is provided with a guide plate 6, a plurality of groups of moving packing beds 8 are installed in the moving bed packing layer 5, a desulfurizing agent is installed in the moving bed packing bed 8, a rear baffle 7 is fixedly installed on the other side of the moving bed packing layer 5, the top of the reaction device 2 is provided with a plurality of feed inlets 9, the top of the reaction device 2 is provided with, divide the bottom of material passageway 10 and to be linked together with removing packed bed 8, reaction unit 2's bottom fixed mounting has a plurality of discharge hoppers 13, and a plurality of discharge hoppers 13 are linked together with a plurality of removal packed bed 8 respectively, are provided with discharge valve 12 on the discharge hopper 13.
The utility model discloses in, one side of reaction unit 2 is provided with overhauls manhole 11, and can dismantle fixed mounting in the overhauls manhole 11 and have the access door, utilizes to overhaul manhole 11 and can carry out the timing maintenance to reaction unit 2's inside.
The utility model discloses in, the desulfurizer is strip granule, and the size of desulfurizer is width 6~15mm, length 10mm ~30 mm.
In the utility model, the reaction device 2 is a rectangular structure.
In the utility model, the reaction device 2 adopts a rectangular structure, the movable packed bed 8 is a two-layer plate structure, the flue gas enters the reaction device 2 through the lateral reaction device air inlet 3 of the reaction device 2, the flue gas enters into each air inlet channel distributed under the action of the guide plate 6, the uniformity of the flue gas flow is improved, and the resistance of the flue gas is reduced, the front baffle 4 mainly aims at guiding the flow direction of the flue gas to enter the movable packed bed 8 through the moving bed packing layer 5, the contact reaction is carried out with the moving bed packing layer 5, the moving bed packing layer 5 is filled with stacked desulfurizer, the desulfurizer of the moving bed packing layer 5 is filled through the feed inlet 9, the flue gas enters the moving bed packing layer 5 through the material distribution channel 10, the discharge valve 12 installed through the discharge hopper 13 at the bottom of the reaction device 2 controls the blanking speed, the maintenance manhole 11 is arranged on the main body of the reaction, the maintenance of the reaction device 2 is convenient.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. A square moving bed dry desulfurization device for flue gas desulfurization comprises a reaction device (2) and is characterized in that one end of the reaction device (2) is provided with a reaction device gas outlet (1), the other end of the reaction device (2) is provided with a reaction device gas inlet (3), a front baffle (4) is fixedly installed in the reaction device (2), a moving bed packing layer (5) is arranged in the reaction device (2), one side of the moving bed packing layer (5) is fixedly connected with one side of the front baffle (4), a guide plate (6) is arranged on one side of the moving bed packing layer (5), a plurality of groups of moving packing beds (8) are arranged in the moving bed packing layer (5), a desulfurizing agent is arranged in the moving packing bed (8), and a rear baffle (7) is fixedly installed on the other side of the moving bed packing layer (5), the top of reaction unit (2) is provided with a plurality of feed inlets (9), the top of reaction unit (2) is provided with a plurality of material distribution channels (10), and the top and feed inlet (9) of material distribution channel (10) are linked together, the bottom and the removal packed bed (8) of material distribution channel (10) are linked together, the bottom fixed mounting of reaction unit (2) has a plurality of discharge hoppers (13), and a plurality of discharge hoppers (13) are linked together with a plurality of removal packed bed (8) respectively, be provided with discharge valve (12) on discharge hopper (13).
2. The moving bed dry desulfurization device with square structure for flue gas desulfurization according to claim 1, characterized in that one side of the reaction device (2) is provided with an inspection manhole (11), and an inspection door is detachably and fixedly installed in the inspection manhole (11), and the inside of the reaction device (2) can be inspected at regular time by using the inspection manhole (11).
3. The moving bed dry desulfurization device with square structure for flue gas desulfurization according to claim 1, characterized in that the desulfurizing agent is a strip-shaped particle, and the size of the desulfurizing agent is 6 mm-15 mm in width and 10 mm-30 mm in length.
4. The moving bed dry desulfurization apparatus with square structure for flue gas desulfurization according to claim 1, characterized in that said reaction device (2) has a rectangular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020532594.1U CN212188570U (en) | 2020-04-13 | 2020-04-13 | A square structure removes bed dry process desulphurization unit for flue gas desulfurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020532594.1U CN212188570U (en) | 2020-04-13 | 2020-04-13 | A square structure removes bed dry process desulphurization unit for flue gas desulfurization |
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| Publication Number | Publication Date |
|---|---|
| CN212188570U true CN212188570U (en) | 2020-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020532594.1U Active CN212188570U (en) | 2020-04-13 | 2020-04-13 | A square structure removes bed dry process desulphurization unit for flue gas desulfurization |
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| Country | Link |
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| CN (1) | CN212188570U (en) |
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2020
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