Device for preparing honeycomb-shaped low-temperature SCR (Selective Catalytic Reduction) catalyst active powder

Abstract

The utility model relates to a honeycomb low-temperature SCR catalyst active powder preparation device which is characterized in that a dust conveying port is vertically formed in the bottom of the inner side of a reaction frame body, fixing frames are fixedly mounted at the two ends of the outer side of a discharging pipe, pushing mechanisms are arranged on the two sides of the interior of each fixing frame, and a two-way synchronizing mechanism is arranged in the middle of the inner side of each fixing frame; the whole horizontal length of the movable pipe and the discharging pipe and the length of the movable pipe protruding out of the two side ends of the discharging pipe can be adjusted, and the number of discharging grooves capable of being used for discharging at the bottoms of the movable pipe and the discharging pipe can be synchronously adjusted. Furthermore, the number of the discharging grooves can be adaptively adjusted according to the actual demand of catalyst powder preparation, the spraying uniformity of the raw material slurry is guaranteed, waste caused by slurry spraying overlapping is avoided, and therefore it is guaranteed that the raw material slurry makes full contact with reaction hot air gas, and the reaction rate is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to catalyst powder preparation technical field, concretely for a kind of for honeycomb low-temperature SCR catalyst active powder preparation device. BACKGROUND

[0002] Honeycomb low-temperature SCR catalyst active powder is a kind of efficient environmental protection material, mainly used to reduce the nitrogen oxide emission in flue gas, it is made of specific nanoscale raw material after mixing, forming, sintering etc. Process, with honeycomb structure, can increase specific surface area, improve catalytic activity, it also has good stability and wear resistance, can adapt to different working conditions, widely used in flue gas denitration treatment in the industry such as electric power, steel, ceramics, glass etc.

[0003] According to the public patent CN211303075U, a kind of for honeycomb low-temperature SCR catalyst active powder preparation device, the device includes hot blast furnace, reactor, catalyst slurry injection device, cyclone dust collector and distribution valve;Hot blast furnace body outside is equipped with air inlet and air outlet, the air outlet is communicated with the reactor;The spout of catalyst slurry injection device is inserted into reactor through the opening arranged in the side wall of reactor;The top opening of reactor is connected with the air inlet of the top side wall of cyclone dust collector;Cyclone dust collector top is equipped with exhaust system;The lower end of cyclone dust collector is connected with three-way distribution valve, one channel of distribution valve is connected with the fluid bed;Another channel is connected with active powder receiving device;Two channels are not opened simultaneously.The device is that TiO2 powder and active component are prefabricated into active powder, then extrusion forming and drying calcination, so as to improve the denitration performance and yield of honeycomb low-temperature SCR catalyst, in the process of realizing the utility model, the inventor finds that at least the following problems in the prior art have not been solved, the spout of catalyst slurry injection device is inserted into reactor through the opening arranged in the side wall of reactor, which solves the problems of low active component load of carrier impregnation method finished product SCR catalyst and poor use effect, but in actual use process, after catalyst slurry is set horizontally in the reactor, the catalyst slurry is directly sprayed into the reactor, the position of the spout of the catalyst slurry and the number of the spout cannot be adjusted and changed, different spraying positions can cause the flow path of the slurry in the reactor to change, and when the number of spouts is too few or too many, it can cause the uniformity of slurry spraying or slurry spraying overlap or waste, thereby affecting the contact area and reaction time of the catalyst with the reaction gas, and further affecting the reaction efficiency of the catalyst. Therefore, new technical solutions need to be designed to solve the problem. UTILITY MODEL CONTENTS

[0004] The utility model discloses a purpose at overcoming the prior art's insufficient, adaptation reality needs, provide a kind of for honeycomb low-temperature SCR catalyst active powder preparation device, to solve the current catalyst slurry is set to the inside of reactor after, catalyst slurry is directly sprayed to the inside of reactor, cannot adjust change the position of the spout of catalyst slurry and spout quantity, and different spray position can cause the flow path of slurry in reactor to change, and when spout quantity is too few or too much, it can cause the injection uniformity of slurry or the injection overlap of slurry or waste, thereby influence its contact area with reaction gas and reaction time, further influence the technical problem of the reaction efficiency of catalyst.

[0005] In order to realize the purpose of the utility model, the technical scheme that the utility model adopts is: a kind of for honeycomb low-temperature SCR catalyst active powder preparation device is designed, including reaction frame body, detachably mounted with sealing cover frame on the top of the reaction frame body, hot air gas pipe is fixedly installed with the lateral middle part of the reaction frame body, conveying pipe is rotatably installed with the middle end of the sealing cover frame through bearing penetration, the bottom of the conveying pipe is fixedly connected with discharge pipe, discharge pipe is slidably installed with movable tube on both sides in the inside;

[0006] The inside bottom of the reaction frame body is vertically provided with dust conveying port, and the outside of the discharge pipe is fixedly installed with fixed frame on both ends, each fixed frame is provided with push mechanism on both sides in the inside, and the push mechanism and movable tube outside are transmission connected;

[0007] Each fixed frame is provided with bidirectional synchronization mechanism in the inside middle part, and the bidirectional synchronization mechanism and push mechanism are transmission connected.

[0008] Preferably, the push mechanism includes a rotating screw, each fixed frame is rotatably installed with rotating screw on both sides in the inside, each rotating screw is movably sleeved with movable sleeve on the outside of each rotating screw by screw thread, each movable sleeve is fixedly installed with connecting frame on both ends of the outside, each movable tube is movably sleeved with fixed sleeve on the outside of one end away from the discharge pipe, and the connecting frame side and the fixed sleeve outside are fixedly connected.

[0009] Preferably, the bidirectional synchronization mechanism includes transmission bevel gear and follow-up bevel gear, each fixed frame is fixedly installed with servo motor on the outside middle end, and the transmission shaft side of servo motor is movably sleeved with follow-up bevel gear, each rotating screw is movably sleeved with transmission bevel gear on the side close to rotating screw, and the outside of transmission bevel gear and follow-up bevel gear is engaged.

[0010] Preferably, the top of the conveying pipe is rotatably connected with the feeding pipe through a rotary joint, a hollow frame is fixedly installed outside the top of the sealing cover frame, a rotating motor is fixedly installed at the top outside of the hollow frame, a rotating rod is vertically rotatably installed at the middle inside of the hollow frame through a bearing, the bottom of the transmission shaft of the rotating motor is fixedly connected with the top of the rotating rod through a coupling, a transmission gear is fixedly sleeved with the middle outside of the rotating rod, a follower gear is fixedly sleeved with the outside of the conveying pipe, and the transmission bevel gear and the follower gear are engaged.

[0011] Preferably, the bottom of each of the discharge pipes and the movable pipes is provided with a plurality of groups of discharge grooves.

[0012] Preferably, the bottom of each of the discharge pipes and the movable pipes is provided with a plurality of groups of discharge grooves.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The utility model discloses a reaction frame body, which comprises a reaction frame body, a sealing cover frame is fixedly installed at the top of the reaction frame body, a fixed frame is fixedly installed outside the top of the sealing cover frame, a servo motor is fixedly installed at the middle outside of the fixed frame, a transmission bevel gear is fixedly sleeved with the middle outside of the servo motor, a rotating screw rod is rotatably installed at the middle inside of the fixed frame, a movable sleeve is fixedly sleeved with the outside of the rotating screw rod, a movable pipe is movably inserted into the inside of the movable sleeve, a discharge pipe is fixedly installed at the top of the reaction frame body, and a hollow frame is fixedly installed outside the top of the discharge pipe.

[0015] 2. The utility model discloses a reaction frame body, which comprises a reaction frame body, a sealing cover frame is fixedly installed at the top of the reaction frame body, a fixed frame is fixedly installed outside the top of the sealing cover frame, a servo motor is fixedly installed at the middle outside of the fixed frame, a transmission bevel gear is fixedly sleeved with the middle outside of the servo motor, a rotating screw rod is rotatably installed at the middle inside of the fixed frame, a movable sleeve is fixedly sleeved with the outside of the rotating screw rod, a movable pipe is movably inserted into the inside of the movable sleeve, a discharge pipe is fixedly installed at the top of the reaction frame body, and a hollow frame is fixedly installed outside the top of the discharge pipe. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole three-dimensional structure schematic diagram of the utility model;

[0017] Figure 2 It is the whole internal three-dimensional structure schematic diagram of the utility model;

[0018] Figure 3 It is the discharge pipe elevation section structure schematic diagram of the utility model;

[0019] Figure 4 It is the hollow frame front section structure schematic diagram of the utility model;

[0020] In the drawing: 1, reaction frame body; 11, sealing cover frame; 12, conveying pipe; 13, dust conveying port; 14, hot air gas pipe; 15, discharge groove;

[0021] 2, discharge pipe; 21, movable pipe; 22, fixed frame; 23, rotating screw; 24, follow-up bevel gear; 25, transmission bevel gear; 26, movable sleeve; 27, connecting frame; 28, fixed sleeve; 29, servo motor;

[0022] 3, rotary joint; 31, feed pipe; 32, hollow frame; 33, rotating motor; 34, rotating rod; 35, transmission gear; 36, follow-up gear;

[0023] 4, limiting sliding slot. DETAILED DESCRIPTION

[0024] The utility model is further explained in connection with the drawings and examples as follows:

[0025] Example 1: a kind of for honeycomb low-temperature SCR catalyst active powder preparation device, refer to Figures 1 to 4The utility model provides a kind of catalyst powder preparation device, including reaction frame 1, reaction frame 1 top detachably mounted with sealing cover frame 11, reaction frame 1 side middle part transversely fixedly installed with hot air gas pipe 14, sealing cover frame 11 middle end is rotatably installed with conveying pipe 12 by bearing penetration, conveying pipe 12 bottom fixedly connected with discharge pipe 2, discharge pipe 2 inside both sides are slidably installed with movable pipe 21, and the inside bottom of reaction frame 1 is vertically provided with dust conveying port 13, and the outside both ends of discharge pipe 2 are fixedly installed with fixed frame 22, and each fixed frame 22 inside is provided with push mechanism, and push mechanism and movable pipe 21 outside transmission are connected, and the inside middle part of each fixed frame 22 is provided with bidirectional synchronization mechanism, and bidirectional synchronization mechanism and push mechanism transmission are connected, under the synchronous driving effect of bidirectional synchronization mechanism to push mechanism, and the horizontal pushing force that push mechanism provides to movable pipe 21, the horizontal length of movable pipe 21 and discharge pipe 2 whole and the length of movable pipe 21 protruding from both sides of discharge pipe 2 can be adjusted, the number of discharge groove 15 that movable pipe 21 and discharge pipe 2 bottom can be used for discharging is synchronously adjusted, and then the number of discharge groove 15 can be adjusted in suitability according to the actual demand of catalyst powder preparation, guarantee the uniformity of raw material slurry spraying and avoid waste caused by slurry spraying overlap, to guarantee that raw material slurry and reaction hot air gas are fully contacted to improve reaction rate.

[0026] Specifically, referring to Figures 1 to 4 Push mechanism includes rotating screw rod 23, and each fixed frame 22 inside both sides are rotatably installed with rotating screw rod 23 by bearing, and each rotating screw rod 23 outside is movably sleeved with movable sleeve 26 by thread, and each movable sleeve 26 outside both ends are transversely fixedly installed with connecting frame 27, and the one end outside of each movable pipe 21 away from discharge pipe 2 is fixedly sleeved with fixed sleeve 28, and connecting frame 27 side and fixed sleeve 28 outside are fixedly connected, under the rotating transmission effect of rotating screw rod 23 to movable sleeve 26, when rotating screw rod 23 rotates, movable sleeve 26 and connecting frame 27 can provide the power required for movable pipe 21 horizontal movement adjustment.

[0027] Further, referring to Figures 1 to 4 Bidirectional synchronization mechanism includes transmission bevel gear 25 and follower bevel gear 24, and each fixed frame 22 outside middle end is fixedly installed with servo motor 29, and the transmission shaft side of servo motor 29 is fixedly sleeved with follower bevel gear 24, and each rotating screw rod 23 is fixedly sleeved with transmission bevel gear 25 near rotating screw rod 23 side, and transmission bevel gear 25 and follower bevel gear 24 outside are engaged, under the engagement transmission effect of transmission bevel gear 25 and follower bevel gear 24, servo motor 29 can drive both sides rotating screw rod 23 to rotate synchronously when operating, to make two groups of movable sleeve 26 can be synchronously horizontally moved, and provide the synchronous force of horizontal movement to movable pipe 21 both sides of discharge pipe 2.

[0028] It is worth mentioning that, see Figures 1 to 4 The top of the conveying pipe 12 is connected with the feeding pipe 31 through the rotary joint 3, the hollow frame 32 is fixedly installed outside the top of the sealing cover frame 11, the rotary motor 33 is fixedly installed outside the top of the hollow frame 32, the rotary rod 34 is vertically rotatably installed in the middle of the inner side of the hollow frame 32 through a bearing, the transmission shaft of the rotary motor 33 is fixedly connected with the top of the rotary rod 34 through a coupling, the transmission gear 35 is fixedly sleeved outside the middle of the rotary rod 34, the follower gear 36 is fixedly sleeved outside the conveying pipe 12, and the transmission bevel gear 25 and the follower gear 36 are engaged, so that the rotary motor 33 can drive the conveying pipe 12, the discharge pipe 2 and the movable pipe 21 to rotate synchronously when the rotary motor 33 is running, the horizontal position of the discharge groove 15 is adjusted, and the discharge position of the raw material slurry is adjusted, so that the raw material can fully contact with the hot air gas for reaction, and the reaction rate is further improved.

[0029] It is worth noting that, see Figures 1 to 4 The bottom of each discharge pipe 2 and movable pipe 21 is provided with a discharge groove 15, and the number of the discharge grooves 15 is several groups, so that the catalyst slurry raw material can be discharged and transported through the structure of the discharge groove 15.

[0030] It is worth mentioning that, see Figures 1 to 4 The limiting sliding groove 4 is formed in the two ends of each fixed frame 22, and the connecting frame 27 penetrates and is slidingly inserted into the limiting sliding groove 4, so that the rotary rod 23 can only move horizontally when it rotates, and the movable sleeve 26 cannot rotate axially, and the movable sleeve 26 and the movable pipe 21 are adjusted and processed.

[0031] In operation, according to the size of the reaction frame 1, the servo motor 29 is opened by an external control switch, and is driven to rotate the transmission bevel gear 25 synchronously in the fixed frame 22. The transmission bevel gear 25 and the driven bevel gear 24 are engaged, and can drive the rotating lead screw 23 on both sides of the fixed frame 22 to rotate synchronously. The rotating lead screw 23 is connected with the connecting frame 27, and the connecting frame 27 is guided and limited by the limiting sliding groove 4. The movable sleeve 26 connected with the rotating lead screw 23 is driven to move horizontally in the fixed frame 22. After adjusting the horizontal position of the two movable sleeves 26 in the fixed frame 22, the connecting frame 27 is connected and driven, and horizontal pushing force is provided to the side end of the movable pipe 21, so that the movable pipe 21 can be moved horizontally out of the discharge pipe 2, and the discharge groove 15 at the bottom of the movable pipe 21 is not blocked by the discharge groove 15 at the bottom of the discharge pipe 2. After increasing the number of discharge grooves 15, the sealing cover frame 11 is fixed on the top of the reaction frame 1, and the movable pipe 21 and the discharge pipe 2 are located on the top of the reaction frame 1. The exhaust port of the externally arranged hot blast furnace is connected with the hot blast air pipe 14, and the hot blast air is delivered to the inside of the reaction frame 1. The cyclone dust collector air inlet and the dust delivery port 13 are connected, and the rotating motor 33 is opened synchronously. The transmission gear 35 is driven to rotate synchronously, and the driven gear 36 is engaged. The transmission gear 35 and the driven gear 36 are engaged, and can drive the conveying pipe 12 to rotate synchronously in the sealing cover frame 11. The discharge pipe 2 and the movable pipe 21 are driven to rotate synchronously in the reaction frame 1, and the discharge position of the discharge groove 15 is adjusted horizontally. The catalyst raw material slurry is delivered through the feeding pipe 31, and the rotary joint 3 is rotated and connected. The raw material slurry is delivered to the inside of the reaction frame 1 through the discharge pipe 2 and the discharge groove 15 at the bottom of the movable pipe 21. The hot blast furnace delivers hot air, and the catalyst slurry raw material slurry is dried into catalyst powder. The catalyst powder is brought into the cyclone dust collector, and the catalyst powder is separated and processed.

[0032] In addition, the components designed in the utility model are all general standard components or components known by those skilled in the art, the structure and principle of which can be known by technical personnel through technical manuals or through conventional experimental methods, and those skilled in the art can realize them without further description, and the content protected by the utility model does not involve improvement of internal structure and method.

[0033] The embodiments of the utility model disclose preferred embodiments, but are not limited thereto, and those skilled in the art can easily understand the spirit of the utility model according to the above-mentioned embodiments, and make different inferences and changes, as long as they do not deviate from the spirit of the utility model, and are within the protection scope of the utility model.

Claims

1. A device for the preparation of a cellular low-temperature SCR catalyst active powder comprising a reaction frame (1), characterized in that, The reaction frame (1) top detachable mounting seal cover frame (11), the reaction frame (1) side middle transverse fixedly installed hot air pipe (14), the seal cover frame (11) middle end through bearing penetration rotary installation has conveying pipe (12), the conveying pipe (12) bottom fixedly connected with discharge pipe (2), the discharge pipe (2) inside both sides are slidably installed with movable pipe (21); The reaction frame (1) inside bottom vertical opening has dust conveying port (13), the discharge pipe (2) outside both ends are fixedly installed with fixed frame (22), each fixed frame (22) inside both sides are provided with push mechanism, and the push mechanism and movable pipe (21) outside transmission is connected; Each fixed frame (22) inside middle part is provided with bidirectional synchronization mechanism, and the bidirectional synchronization mechanism and the push mechanism are transmission connected.

2. The apparatus for preparing a honeycomb low-temperature SCR catalyst active powder according to claim 1, wherein The push mechanism includes rotating screw (23), each fixed frame (22) inside both sides are rotatably installed with rotating screw (23) through bearing, each rotating screw (23) outside is movably sleeved with movable sleeve (26) through screw thread, each movable sleeve (26) outside both ends are transversely fixedly installed with connecting frame (27), and each movable pipe (21) is movably sleeved with fixed sleeve (28) on the end away from the discharge pipe (2), and the connecting frame (27) side and the fixed sleeve (28) outside are fixedly connected.

3. The apparatus for preparing a honeycomb low-temperature SCR catalyst active powder according to claim 2, wherein The bidirectional synchronization mechanism includes transmission bevel gear (25) and follow-up bevel gear (24), each fixed frame (22) outside middle end is fixedly installed with servo motor (29), and the transmission shaft side of the servo motor (29) is fixedly sleeved with follow-up bevel gear (24), each rotating screw (23) is fixedly sleeved with transmission bevel gear (25) on the side close to the rotating screw (23), and the transmission bevel gear (25) and the follow-up bevel gear (24) outside are engaged.

4. The apparatus for preparing a honeycomb cryogenic SCR catalyst active powder according to claim 1, wherein The conveying pipe (12) top is rotatably connected with feed pipe (31) through swivel joint (3), the seal cover frame (11) top outside is fixedly installed with hollow frame (32), the hollow frame (32) outside top is fixedly installed with rotating motor (33), the hollow frame (32) inside middle end is rotatably installed with rotating rod (34) through bearing, and the transmission shaft bottom of the rotating motor (33) is fixedly connected with the rotating rod (34) top through the shaft coupling, the rotating rod (34) middle end outside is fixedly sleeved with transmission gear (35), the conveying pipe (12) outside is fixedly sleeved with follow-up gear (36), and the transmission bevel gear (25) and the follow-up gear (36) are engaged.

5. The apparatus for preparing a honeycomb cryogenic SCR catalyst active powder according to claim 1, wherein: Each discharge pipe (2) and movable pipe (21) bottom is provided with discharge groove (15), and the number of discharge grooves (15) is several groups.

6. The apparatus for preparing a cellular low-temperature SCR catalyst active powder according to claim 1, wherein Each fixed frame (22) side both ends are provided with limiting sliding groove (4), and the connecting frame (27) penetrates and slidably inserts into the limiting sliding groove (4).

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