CN113405332B - Low temperature SCR denitration catalyst shaping drying device - Google Patents

Abstract

The invention provides a low-temperature SCR denitration catalyst forming and drying device, which belongs to the technical field of catalyst processing and comprises a placing frame, wherein a conversion cavity is connected onto the placing frame, a flow guide surface is arranged on the conversion cavity, a bearing plate is movably connected onto the placing frame, an adjusting block for adjusting the position of the bearing plate is slidably inserted onto the placing frame, an eccentric wheel assembly corresponding to the adjusting block is rotatably connected into the placing frame, an area detection assembly for driving the eccentric wheel assembly is connected onto the placing frame, and the area detection assembly is matched with the flow guide surface for use. This low temperature SCR denitration catalyst shaping drying device passes through rack, track portion, conversion cavity, water conservancy diversion face, accepts the combined action of board, regulating block, eccentric wheel subassembly and regional detection subassembly, not only improves shaping drying device's application scope and flexibility of use, can carry out the shaping drying process of pertinence to the honeycomb formula catalyst simultaneously, has effectively improved honeycomb formula catalyst's machining efficiency and processing effect.

Description

Low temperature SCR denitration catalyst shaping drying device

Technical Field

The invention relates to the technical field of catalyst processing, in particular to a low-temperature SCR denitration catalyst forming and drying device.

Background

The SCR denitration catalyst is the core of SCR denitration catalytic reaction and is an important factor directly influencing denitration efficiency and effect, wherein the low-temperature SCR denitration catalyst can be arranged after desulfurization under the condition of low energy consumption, can effectively reduce energy consumption, prevent the blockage of catalyst pore channels and prolong the service life of the catalyst, and becomes an object of key optimization development at present.

The existing catalyst mainly researches and optimizes the direction of catalyst raw material formula, processing technology and processing device, wherein the problems to be optimized in the aspect of the catalyst processing device are relatively more, especially the catalyst forming and drying device has the characteristic of universality, so that the catalyst forming and drying device can be used for forming, drying and processing catalysts with different structural forms, the application range is wider, and the drying and processing mode is single and not flexible enough due to the characteristic of universality, so that the forming and drying effects of the catalyst with partial structure, such as the catalyst with a honeycomb structure, are correspondingly reduced.

In the process of processing a honeycomb-shaped catalyst by using the conventional forming and drying device, most honeycomb-shaped structures of the catalyst cannot be formed and dried in a targeted manner, so that the drying speed of the catalyst is low, the drying uniformity is low, the processing efficiency and the processing effect of the honeycomb-shaped catalyst are further reduced, the forming and drying efficiency and the forming and drying effect of the honeycomb-shaped catalyst are improved by increasing the flow velocity of air flow in the drying device in a large area at a small part, and the catalyst is easily deformed or even damaged due to insufficient current rigidity of the catalyst.

Disclosure of Invention

In order to solve the technical problems, the invention provides a low-temperature SCR denitration catalyst forming and drying device, which is achieved by the following specific technical means: the automatic bearing plate placing device is characterized by comprising a placing frame, wherein a conversion cavity is connected onto the placing frame, a flow guide surface is arranged on the conversion cavity, a bearing plate is movably connected onto the placing frame, adjusting blocks used for adjusting the position of the bearing plate are arranged on the placing frame in a sliding and inserting mode, the adjusting blocks are symmetrically arranged on two sides of the bearing plate, an eccentric wheel assembly corresponding to the adjusting blocks is connected into the placing frame in a rotating mode, an area detection assembly used for driving the eccentric wheel assembly is connected onto the placing frame, and the area detection assembly is matched with the flow guide surface for use.

The first preferred technical scheme is as follows: the rack includes fixed part and track portion, is connected with evenly distributed's track portion on the fixed part, accepts board sliding connection on track portion, and track portion is the L shape plate that two symmetries set up, and the regulating block slides and pegs graft on track portion and accepts the corresponding position of board, and eccentric wheel subassembly rotates to be connected in track portion.

The preferred technical scheme is as follows: the ball ribbon board corresponding to the bearing plate is connected to the placing frame, so that friction force in the moving process of the bearing plate is reduced, and smoothness and stability of the moving process of the bearing plate are correspondingly improved.

The preferred technical scheme is three: the flow guide surface comprises a panel and flow guide areas, and the flow guide areas are uniformly distributed on the panel.

The preferable technical scheme is four: the flow guide area is a funnel-shaped flow guide hole which is uniformly distributed, so that the airflow is strengthened, and the flowing speed of the airflow is improved.

The preferred technical scheme is five: the eccentric wheel assembly comprises a driving shaft and a round wheel, the driving shaft is arranged on one side of the adjusting block, which is opposite to the adjusting block, the round wheel is uniformly sleeved on the driving shaft, the circle centers of the driving shaft and the round wheel are not on the same straight line, and the stability of the bearing plate in the moving process is improved.

The preferred technical scheme is six: regional detection subassembly includes regional frame, restriction axle subassembly, commentaries on classics board, elasticity restriction spare and board seat, and regional frame evenly connects on the board seat, changes the board and rotates through restriction axle subassembly and connect in regional frame, and the elasticity restriction spare uses restriction axle subassembly to connect as symmetry line symmetry between restriction axle subassembly and commentaries on classics board, and restriction axle subassembly elasticity sliding connection is in regional frame.

The preferred technical scheme is seven: and the following detection piece matched with the rotating plate for use is connected in the area frame.

The invention has the following beneficial effects: 1. this low temperature SCR denitration catalyst shaping drying device passes through rack, track portion, conversion cavity, water conservancy diversion face, accepts the combined action of board, regulating block, eccentric wheel subassembly and regional detection subassembly, not only improves shaping drying device's application scope and flexibility of use, can carry out the shaping drying process of pertinence to the honeycomb formula catalyst simultaneously, has effectively improved honeycomb formula catalyst's machining efficiency and processing effect.

2. This low temperature SCR denitration catalyst shaping drying device passes through the water conservancy diversion face, accepts board, regional detection subassembly and follows the combined action of detecting part, can carry out automatically regulated to the catalyst position in the drying process, has further improved dry efficiency and the effect of catalyst shaping.

3. According to the low-temperature SCR denitration catalyst forming and drying device, the situation that the honeycomb type catalyst placed on the bearing plate is deformed or damaged due to movement can be effectively avoided on the basis through the combined action of the eccentric wheel assembly and the bearing plate, and accordingly the honeycomb type catalyst drying and forming effect is improved.

Drawings

FIG. 1 is a schematic view showing a connection structure of the rack, the area detecting unit and the drying chamber according to the present invention.

FIG. 2 is a schematic view of the connection between the bearing plate and the rail portion according to the present invention.

FIG. 3 is a top cross-sectional structural view of the eccentric wheel assembly of the present invention.

FIG. 4 is a schematic view of the connection structure of the bearing plate of the present invention.

Fig. 5 is a schematic view of a connecting structure of the flow guide surface of the present invention.

FIG. 6 is an enlarged view of A of FIG. 1 according to the present invention.

FIG. 7 is a schematic view of the connection structure of the following detecting members according to the present invention.

FIG. 8 is a schematic diagram of a connection structure of the area detecting assembly according to the present invention.

Fig. 9 is a schematic view of a connection relationship between the flow guide region and the region detection assembly according to the present invention.

FIG. 10 is an enlarged view of B of FIG. 9 according to the present invention.

In the figure: 1. placing a rack; 1a, a fixed part; 1b, a rail part; 2. a conversion cavity; 3. a flow guide surface; 31. a panel; 32. a flow guiding area; 4. a bearing plate; 5. an adjusting block; 6. an eccentric wheel assembly; 61. a drive shaft; 62. a round wheel; 7. an area detection component; 71. a region frame; 72. a restraining shaft; 73. rotating the plate; 74. an elastic limiting member; 75. a plate base; 8. a ball bar plate; 9. following the detection member.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Please refer to fig. 1-10: a low-temperature SCR denitration catalyst forming and drying device is suitable for a honeycomb catalyst, honeycomb pore passages which are uniformly distributed are arranged on the honeycomb catalyst, the device comprises a placing frame 1, the placing frame 1 comprises a fixing part 1a and a track part 1b, the fixing part 1a is connected with the track part 1b which is uniformly distributed, the fixing part 1a can be a single-layer frame or a multi-layer frame, as shown in figure 2, the track part 1b is two L-shaped plates which are symmetrically arranged, a placing surface with a middle gap is formed by a lower horizontal plane on the L-shaped plates, a conversion cavity body 2 is connected on the placing frame 1, a diversion surface 3 is arranged on the conversion cavity body 2, the diversion surface 3 comprises a panel 31 and a diversion area 32, the diversion area 32 is uniformly distributed on the panel 31, the diversion area 32 is a funnel-shaped diversion hole which is uniformly distributed, and the size, the distribution condition and the distribution range of the diversion hole need to correspond to the honeycomb pore passages on the honeycomb catalyst, for example, the flow guide surface of the flow guide hole cannot be larger than the flow surface of the honeycomb duct, and the position of the flow guide duct needs to correspond to the position of the central point of the honeycomb duct, where the flow guide surface 3 can be processed by punching the plate-like material once, and the flow guide surface 3 is detachably connected to the conversion cavity 2, the flow guide surface 3 adapted to the size of the honeycomb catalyst can be changed according to the difference in size, the placing frame 1 is movably connected with the receiving plate 4, the receiving plate 4 is slidably connected to the placing surface, the placing frame 1 is slidably inserted with the adjusting block 5 for adjusting the position of the receiving plate 4, here, the adjusting block 5 is connected with the placing frame 1 by the elastic reset piece, the adjusting blocks 5 are respectively and symmetrically arranged at two sides of the receiving plate 4, as shown in fig. 2, the adjusting block 5 is slidably inserted on the vertical section of the L-shaped plate, the placing frame 1 is rotatably connected with the eccentric wheel assembly 6 corresponding to the adjusting block 5, the placing frame 1 is connected with an area detection assembly 7 for driving the eccentric wheel assembly 6, and the area detection assembly 7 is matched with the flow guide surface 3 for use.

Referring to fig. 4, the rack 1 is connected with a ball strip 8 for supporting the bearing plate 4, the ball strip 8 comprises a ball and a connecting plate, the ball is uniformly embedded on the connecting plate in a rotating manner, friction force generated in the moving process of the bearing plate 4 can be effectively reduced, and convenience and stability in moving are improved.

Referring to fig. 2 and 3, the eccentric wheel assembly 6 includes a driving shaft 61 and a circular wheel 62, the driving shaft 61 is respectively disposed on one side of the adjusting block 5 opposite to each other, the circular wheel 62 is uniformly sleeved on the driving shaft 61, and the centers of the driving shaft 61 and the circular wheel 62 are not on the same straight line, when in an initial state, the positions of all the circular wheels 62 on the two corresponding driving shafts 61 are the same, as shown in fig. 3, the driving shaft 61 is rotatably connected in an L-shaped plate, when the driving shaft 61 is rotated to drive the circular wheels 62 thereon to rotate synchronously and in the same direction, the adjusting block 5 slides synchronously and in the same direction in the corresponding L-shaped plate under the action of the circular wheels 62, the adjusting block 5 synchronously drives the bearing plate 4 between the two to move on a placing surface in the sliding process, so as to achieve the purpose of adjusting the position of the bearing plate 4, and the whole adjusting process makes the sliding process of the bearing plate 4 more gradual and stable through the cooperation of the circular wheels 62 on both sides, the honeycomb catalyst placed on the bearing plate 4 can be effectively prevented from being deformed or damaged due to movement, and the drying and forming effect of the honeycomb catalyst is correspondingly improved.

Referring to fig. 6 to 10, the zone detecting assembly 7 includes a zone frame 71, a limiting shaft assembly 72, a rotating plate 73, an elastic limiting member 74 and a plate seat 75, the zone frame 71 is uniformly connected to the plate seat 75, the rotating plate 73 is rotatably connected in the zone frame 71 through the limiting shaft assembly 72, and the rotating plate 73 corresponds to the honeycomb pore canal, the elastic limiting pieces 74 are symmetrically connected between the limiting shaft assembly 72 and the rotating plate 73, the limiting shaft assembly 72 is elastically and slidably connected in the area frame 71, the restraining shaft assembly 72 here includes a fixed rotation shaft, a center link, and a sliding plate, the fixed rotation shaft and the center link being slidably coupled in the zone frame 71 by the sliding plate, as shown in fig. 8, the fixed rotation shaft is inserted into the center of the rotation plate 73, the center connection member is located above the fixed rotation shaft, and both are in the same vertical line, the elastic limiting members 74 are symmetrically connected between the rotating plate 73 and the central connecting member.

Referring to fig. 7 and 8, the following detecting member 9 used in cooperation with the rotating plate 73 is connected in the area frame 71, the following detecting member 9 is a contact start switch, the contact start switch is symmetrically connected in the area frame 71 corresponding to the rotating plate 73, when the rotating plate 73 is biased to rotate along the fixed rotating shaft due to uneven stress, the rotating plate contacts with the corresponding following detection piece 9 and triggers the corresponding driving shaft 61, simultaneously synchronously driving the following detection piece 9 to slide in the area frame 71, wherein an elastic reset piece is connected between the following detection piece 9 and the area frame 71, under the action of the elastic reset piece, the following detection piece 9 is always contacted with the corresponding part of the rotating plate 73, when the force of the rotating plate 73 is balanced, the rotating plate 73 is restored to the initial horizontal state under the action of the elastic limiting piece 74, and the following detection piece 9 is disconnected from the rotating plate 73 and automatically reset under the action of the elastic resetting piece.

The working principle is as follows: the low-temperature SCR denitration catalyst forming and drying device needs the matching of a drying chamber, a conversion cavity 2 and a region detection assembly 7 can be correspondingly arranged on the inner side wall of the drying chamber, as shown in figure 1, the region detection assembly 7 is arranged on the inner side wall of a drying chamber door, the corresponding conversion cavity 2 is arranged on the side wall corresponding to the door, meanwhile, a placing frame 1 can be selected to be fixedly arranged in the forming and drying chamber firstly according to the requirement, then a bearing plate 4 with the catalyst arranged is placed on the placing frame 1, or the bearing plate 4 with the catalyst arranged is placed on the placing frame 1 firstly, then the placing frame 1 is sent into the forming and drying chamber, when the honeycomb type catalyst is formed and dried, the gas in the drying chamber is sent into the conversion cavity 2 by a fan and is discharged into the drying chamber by a flow guide surface 3 on the conversion cavity 2 to form a circulation of gas flow, in the air flow circulation process, the diversion area 32 is utilized to divert the air flow and the intensity of the diverted air flow is strengthened by the funnel-shaped diversion holes, the strengthened air flow is sent to the honeycomb pore channels of the corresponding honeycomb catalyst, the flowing speed of the air flow in the honeycomb pore channels is correspondingly improved, through a targeted drying processing mode, the drying efficiency of the honeycomb catalyst is improved, the drying uniformity of the honeycomb catalyst is improved, further improving the forming and drying effect of the honeycomb catalyst, and when other types of catalysts are formed and dried, whether the fan is started or not can be selected according to the requirement, the fan is started to form circulating airflow, the speed of the whole airflow in the drying chamber is improved by utilizing the airflow, the drying efficiency is improved, certainly also can not start the fan, keep normal dry processing state, corresponding application scope and the flexibility of using that has improved shaping drying device.

Secondly, when the split-flow reinforced airflow passes through the honeycomb duct and flows out, whether the position of the honeycomb duct corresponds to the diversion hole is judged by detecting the airflow through the area detection assembly 7, for example, when the diversion hole corresponds to the position of the honeycomb duct, the flowing-out airflow uniformly acts on the opposite rotating plate 73, at this time, the rotating plate 73 keeps a normal horizontal state, and when the diversion hole does not completely correspond to the position of the honeycomb duct, the flowing-out airflow non-uniformly acts on the rotating plate 73, so that the rotating plate 73 is deflected to a certain degree and contacts with the corresponding following detection piece 9 to start the corresponding driving shaft 61, the driving shaft 61 adjusts the position of the bearing plate 4 through the circular wheel 62 thereon, as shown in fig. 9, when the position of the honeycomb duct corresponds to the diversion hole shifted to the right, the range of the reinforced airflow acting on the right half edge of the rotating plate 73 is larger, and then make the rotating plate 73 rotate counterclockwise around the fixed rotating shaft, in the course of rotating, the rotating plate 73 contacts with correspondent following detection member 9 and starts the correspondent driving shaft 61, the driving shaft 61 drives the bearing plate 4 to move leftwards through the round wheel 62 and adjusts the position of the catalyst thereon, when the position of the honeycomb duct on the catalyst is adjusted to the position corresponding to the diversion hole, the rotating plate 73 is restored to the initial horizontal state under the action of the elastic limiting member 74, at this time the rotating plate 73 keeps the stable horizontal state under the combined action of the air flow and the elastic limiting member 74, the following detection member 9 is restored to the initial position under the action of the elastic restoring member and does not contact with the rotating plate 73, correspondingly make the driving shaft 61 stop rotating, when the position of the honeycomb duct is deviated leftwards corresponding to the diversion hole, the position of the catalyst can be automatically adjusted in the same way as above, further raise the efficiency and effect of catalyst molding and drying, meanwhile, the catalyst structure can be prevented from deforming because the positions of the diversion holes and the honeycomb pore passages do not completely correspond to the positions of the air flow and act on the catalyst for a long time, and the forming and drying effects of the catalyst are further improved.

Here, a plurality of partition plates may be disposed in the area frame 71, a plurality of small compartments corresponding to the rotating plate 73 are formed by the partition plates and the area frame 71, and the interference resistance of the rotating plate 73 is improved by using relatively independent small compartments, so as to improve the accuracy of the corresponding airflow detection result of the rotating plate 73.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a low temperature SCR denitration catalyst shaping drying device, includes rack (1), its characterized in that: the device is suitable for honeycomb catalysts, honeycomb pore canals which are uniformly distributed are arranged on the honeycomb catalysts, a conversion cavity (2) is connected onto a placing frame (1), a flow guide surface (3) is arranged on the conversion cavity (2), a bearing plate (4) is movably connected onto the placing frame (1), an adjusting block (5) for adjusting the position of the bearing plate (4) is slidably inserted onto the placing frame (1), the adjusting block (5) is symmetrically arranged on two sides of the bearing plate (4), an eccentric wheel assembly (6) corresponding to the adjusting block (5) is rotatably connected onto the placing frame (1), an area detection assembly (7) for driving the eccentric wheel assembly (6) is connected onto the placing frame (1), the area detection assembly (7) is matched with the flow guide surface (3) for use, the eccentric wheel assembly (6) comprises a driving shaft (61) and a round wheel (62), the driving shaft (61) is respectively arranged on one side of the back of the adjusting block (5), the round wheel (62) is evenly sleeved on the driving shaft (61), the circle centers of the driving shaft (61) and the round wheel (62) are not on the same straight line, and when the driving shaft (61) drives the round wheel (62) on the driving shaft to rotate synchronously and in the same direction, the adjusting block (5) slides synchronously and in the same direction under the action of the round wheel (62).

2. The device for molding and drying the low-temperature SCR denitration catalyst according to claim 1, characterized in that: the rack (1) comprises a fixing part (1a) and a track part (1b), the track part (1b) is connected with the fixing part (1a) and is uniformly distributed, a bearing plate (4) is connected to the track part (1b) in a sliding mode, an adjusting block (5) is inserted into the position, corresponding to the bearing plate (4), of the track part (1b) in a sliding mode, and an eccentric wheel assembly (6) is connected into the track part (1b) in a rotating mode.

3. The device for molding and drying the low-temperature SCR denitration catalyst according to claim 2, characterized in that: the rail parts (1b) are two L-shaped plates which are symmetrically arranged.

4. The device for molding and drying the low-temperature SCR denitration catalyst according to claim 1, characterized in that: the placing rack (1) is connected with a ball strip plate (8) corresponding to the bearing plate (4).

5. The device for molding and drying the low-temperature SCR denitration catalyst according to claim 1, characterized in that: the flow guide surface (3) comprises a panel (31) and flow guide areas (32), and the flow guide areas (32) are uniformly distributed on the panel (31).

6. The device for molding and drying the low-temperature SCR denitration catalyst according to claim 5, wherein: the flow guide area (32) is a funnel-shaped flow guide hole which is uniformly distributed.

7. The device for molding and drying the low-temperature SCR denitration catalyst according to claim 1, characterized in that: regional detection subassembly (7) are including regional frame (71), restriction axle subassembly (72), commentaries on classics board (73), elasticity restriction spare (74) and board seat (75), regional frame (71) evenly connect on board seat (75), commentaries on classics board (73) are through restricting axle subassembly (72) rotation connection in regional frame (71), elasticity restriction spare (74) use restriction axle subassembly (72) to connect between restriction axle subassembly (72) and commentaries on classics board (73) for symmetry line symmetry, restriction axle subassembly (72) elasticity sliding connection is in regional frame (71).

8. The device for molding and drying the low-temperature SCR denitration catalyst according to claim 7, characterized in that: and a following detection piece (9) matched with the rotating plate (73) for use is connected in the area frame (71).

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