Gas flow limiting structure of desulfurization and denitrification dust remover

Abstract

The utility model relates to the technical field of dust removers, and particularly discloses a gas flow limiting structure of a desulfurization and denitrification dust remover, which comprises an upper shell and a lower shell which are mutually matched for use and are detachable, and a partition plate is fixedly arranged at the diagonal positions in the upper shell and the lower shell along the length direction of the upper shell and the lower shell. The partition plate divides the interior of the partition plate into an upper ventilation cavity and a lower ventilation cavity, an air inlet and an air outlet are formed in the outer side end face of the upper ventilation cavity and the outer side end face of the lower ventilation cavity respectively, the middle of the partition plate is of a horizontal structure, and a through groove is formed in the center of the middle of the partition plate. Adjusting plates capable of moving oppositely or oppositely are symmetrically arranged on the partition plates at the two ends of the through groove, and a linkage device for controlling the two adjusting plates is further arranged in the upper shell. According to the utility model, a simple connecting structure can be adopted to effectively adjust the gas flow, so that the production cost is reduced, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust collectors, in particular to a gas flow limiting structure for a desulfurization and denitration dust collector. Background Art

[0002] The desulfurization and denitrification dust collector is a purification equipment installed on the flue gas duct. It uses reducing agents such as NH3 and urea to spray into the area inside the device with a temperature of 850-1100℃. The reducing agent is rapidly thermally decomposed into NH3 and selectively reacts with NOx in the flue gas. NOx is reduced to nitrogen and water.

[0003] Patent authorization announcement number: CN217016042U discloses a gas flow limiting structure for a desulfurization and denitrification dust collector, including a circular ring block, the side wall of the circular ring block is fixedly connected to an air inlet pipe, the side wall of the circular ring block at one end away from the air inlet pipe is fixedly connected to an air outlet pipe, the inner wall of the circular ring block is provided with an annular cavity, the inner wall of the annular cavity is evenly provided with a plurality of slide grooves, each slide groove is slidably connected with a slide plate, one end of the slide plate passes through the inner wall of the annular cavity and is fixedly connected with a triangular plate, the inner wall of the slide plate is fixedly connected with a rack, the inner wall of the annular cavity is evenly provided with a plurality of semicircular grooves, each semicircular groove is connected to a corresponding slide groove.

[0004] Although the above utility model can technically adjust the flow rate of its gas, it is necessary to respectively provide an inner toothed belt and an outer toothed belt on the inner and outer walls of the annular plate during the adjustment process, and then adjust it through the cooperation of two gears and a toothed plate. The above structure is complex to connect and the processing cost is high, which reduces the practicality of the device. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the flow rate of the gas cannot be effectively controlled by using a simple connection structure, resulting in reduced practicality of the device.

[0006] In order to solve the above problems, the technical solution of the utility model is: a gas flow limiting structure of a desulfurization and denitration dust collector, comprising two upper shells and lower shells that cooperate with each other and are detachable, wherein the upper shell and the lower shell are fixedly provided with partitions at the diagonal positions along the length direction thereof, and the partitions divide the interior thereof into an upper ventilation cavity and a lower ventilation cavity, and an air inlet and an exhaust port are respectively provided on the outer end surfaces of the upper ventilation cavity and the lower ventilation cavity;

[0007] The middle part of the partition is a horizontal structure and a through groove is opened at the central position of the middle part. Adjustment plates that can move relative to or away from each other are symmetrically arranged on the partitions at both ends of the through groove. A linkage device for controlling the two adjustment plates is also arranged in the upper shell.

[0008] Furthermore, the linkage device includes an articulated seat, a rocker rod and a connecting seat. Articulated seats are symmetrically fixed at the left and right ends of the top surfaces of the two adjustment plates. A rocker rod is connected to each of the articulated seats. The top surface ends of the two rocker rods at the same end are hinged to the connecting seat. A lifting seat is commonly provided on the top surfaces of the two connecting seats. An adjusting device for moving the lifting seat up and down is also provided on the top surface of the upper shell body.

[0009] Furthermore, the adjusting device is an adjusting screw, and the adjusting screw is threadedly penetrated on the top surface of the upper shell corresponding to the middle part of the lifting seat, and the bottom end of the adjusting screw is rotatably connected to the top surface of the lifting seat.

[0010] Furthermore, a locking nut matching with the adjusting screw is provided on the adjusting screw at the contact position with the top surface of the upper shell.

[0011] Furthermore, the upper shell and the lower shell are respectively provided with outwardly extending matching seats along their length directions on the front and rear sides, and each matching seat is also provided with a plurality of positioning holes.

[0012] Furthermore, sealing gaskets are respectively provided at the contact points of the end surfaces of the two matching seats at the same end.

[0013] The advantages of the utility model compared with the existing technology are:

[0014] 1. Through the action of the partition plate and the through groove and the cooperation of the adjusting plate that can move relative or opposite to each other, the relative or opposite movement of the two adjusting plates can be controlled to control the opening and closing size of the through groove, thereby effectively adjusting the flow rate of the gas;

[0015] 2. With the cooperation of the articulated seat, rocker arm, connecting seat, lifting seat and adjusting screw, the adjusting screw can be rotated to drive the lifting seat to move up and down for adjustment. Under the action of the articulated rocker arm, the two adjustment plates are driven to move relative to or away from each other for adjustment, thereby simplifying the internal connection structure of the device and reducing its production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an external structural diagram of the utility model from the first perspective.

[0017] Figure 2 This is an external structural diagram of the utility model from a second viewing angle.

[0018] Figure 3 It is the front internal structure diagram of the utility model.

[0019] Figure 4 It is a side internal structure diagram of the utility model.

[0020] As shown in the figure: 1. Upper shell; 2. Lower shell; 3. Partition; 4. Upper ventilation cavity; 5. Lower ventilation cavity; 6. Air inlet; 7. Exhaust port; 8. Through slot; 9. Adjustment plate; 10. Articulated seat; 11. Rocker arm; 12. Connecting seat; 13. Lifting seat; 14. Adjusting screw; 15. Locking nut; 16. Matching seat. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] like Figures 1 to 4 As shown, a gas flow limiting structure of a desulfurization and denitration dust collector comprises two mutually cooperating and detachable upper shells 1 and lower shells 2, wherein a partition plate 3 is fixedly provided at the diagonal positions along the length direction of the upper shell 1 and the lower shell 2, and abutment seats adapted thereto are fixedly provided on the inner walls of the upper shell 1 and the lower shell 2 corresponding to the two ends of the partition plate 3, and the partition plate 3 divides the interior thereof into an upper ventilation cavity 4 and a lower ventilation cavity 5, and an air inlet 6 and an exhaust port 7 are respectively provided on the outer end surfaces of the upper ventilation cavity 4 and the lower ventilation cavity 5;

[0024] The middle part of the partition 3 is a horizontal structure and a through groove 8 is opened at the central position of the middle part. Under the action of the through groove 8, the upper ventilation cavity 4 and the lower ventilation cavity 5 are connected to transport the gas. Adjustment plates 9 that can move relative to or away from each other are symmetrically provided on the partition 3 at both ends of the through groove 8. The opening and closing size of the through groove 8 is changed by the relative or away movement of the two adjustment plates 9, so as to effectively control the flow rate during the gas transportation process. A linkage device for controlling the two adjustment plates 9 is also provided in the upper shell 1.

[0025] like Figure 3 and Figure 4 As shown, the linkage device includes an articulated seat 10, a rocker rod 11 and a connecting seat 12. The articulated seats 10 are symmetrically fixed at the left and right ends of the top surfaces of the two adjustment plates 9, and the rocker rod 11 is connected to each of the articulated seats 10. The top ends of the two rocker rods 11 at the same end are hinged to the connecting seat 12. A lifting seat 13 is commonly provided on the top surfaces of the two connecting seats 12. An adjusting device for moving the lifting seat 13 up and down is also provided on the top surface of the upper shell 1.

[0026] Through the above structure, the lifting seat 13 is controlled to move up and down, and the two hinged swing rods 11 are moved left and right to drive the adjustment plates 9 at both ends to move relative to or away from each other conveniently and quickly.

[0027] like Figure 1 As shown, the upper shell 1 and the lower shell 2 are respectively provided with outwardly extending mating seats 16 along their length directions on the front and rear sides, and each of the mating seats 16 is also respectively provided with a plurality of positioning holes, through which the upper shell 1 and the lower shell 2 are fixedly connected with the cooperation of positioning bolts and nuts.

[0028] Sealing pads are also provided at the contact points of the end surfaces of the two matching seats 16 at the same end. The provision of the sealing pads can prevent air seepage on the contact surfaces of the upper shell 1 and the lower shell 2.

[0029] Embodiment 2

[0030] Based on the first embodiment, Figure 3 and Figure 4 As shown, the specific structure of the regulating device is as follows:

[0031] The adjusting device is an adjusting screw 14, which is threadedly inserted into the top surface of the upper shell 1 corresponding to the middle of the lifting seat 13. The bottom end of the adjusting screw 14 is rotatably connected to the top surface of the lifting seat 13. When the adjusting screw 14 is rotated, the lifting seat 13 is driven to move up and down under the action of the thread force.

[0032] The adjusting screw 14 is also provided with a locking nut 15 matched therewith at the contact position of the top surface of the upper shell 1 , and the locking nut 15 can prevent the adjusting screw 14 from loosening during use.

[0033] In specific use, first, the air inlet 6 and the exhaust port 7 are respectively connected to the external conveying pipeline. When the gas flow needs to be adjusted, the adjusting screw 14 is rotated to drive the lifting seat 13 to move up and down for adjustment. The two hinged rocker arms 11 at both ends drive the adjustment plates 9 at both ends to move left and right for adjustment relative to or away from each other. In this way, the opening and closing size of the through groove 8 can be effectively adjusted, thereby effectively adjusting the gas flow during the conveying process. The device can adopt a simple connection structure to effectively adjust the gas flow, thereby reducing production costs and improving its practicability.

[0034] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A gas flow limiting structure for a desulfurization and denitration dust collector, comprising an upper shell (1) and a lower shell (2) which cooperate with each other and are detachable, characterized in that: A partition plate (3) is fixedly disposed at the diagonal positions along the length direction of the upper shell (1) and the lower shell (2), and the partition plate (3) divides the interior of the upper shell (1) and the lower shell (2) into an upper ventilation cavity (4) and a lower ventilation cavity (5). An air inlet (6) and an air outlet (7) are respectively disposed on the outer end surfaces of the upper ventilation cavity (4) and the lower ventilation cavity (5); The middle part of the partition (3) is a horizontal structure and a through slot (8) is provided at the central position of the middle part. Adjustment plates (9) that can move relative to or away from each other are symmetrically provided on the partition (3) at both ends of the through slot (8). A linkage device for controlling the two adjustment plates (9) is also provided in the upper shell (1).

2. A gas flow limiting structure for a desulfurization and denitration dust collector according to claim 1, characterized in that: The linkage device comprises an articulated seat (10), a rocker rod (11) and a connecting seat (12). The articulated seats (10) are symmetrically fixed at the left and right ends of the top surfaces of the two adjustment plates (9). The rocker rod (11) is connected to each of the articulated seats (10). The top ends of the two rocker rods (11) at the same end are hinged to the connecting seat (12). The top surfaces of the two connecting seats (12) are jointly provided with a lifting seat (13). An adjusting device for moving the lifting seat (13) up and down is also provided on the top surface of the upper shell (1).

3. A gas flow limiting structure for a desulfurization and denitration dust collector according to claim 2, characterized in that: The adjusting device is an adjusting screw (14), which is threadedly inserted into the top surface of the upper shell (1) corresponding to the middle of the lifting seat (13), and the bottom end of the adjusting screw (14) is rotatably connected to the top surface of the lifting seat (13).

4. A gas flow limiting structure for a desulfurization and denitration dust collector according to claim 3, characterized in that: The adjusting screw rod (14) is also provided with a locking nut (15) matching with the adjusting screw rod (14) at a contact position with the top surface of the upper shell (1).

5. The gas flow limiting structure of a desulfurization and denitration dust collector according to claim 1 is characterized in that: The upper shell (1) and the lower shell (2) are respectively provided with outwardly extending matching seats (16) along their length directions on the front and rear sides, and each matching seat (16) is also provided with a plurality of positioning holes.

6. A gas flow limiting structure for a desulfurization and denitration dust collector according to claim 5, characterized in that: Sealing pads are also provided at the contact points of the end faces of the two matching seats (16) at the same end.

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