Automatic soda ash feeding equipment for flue gas desulfurization

Abstract

The utility model relates to the technical field of flue gas desulfurization, and disclose a soda ash automatic feeding equipment for flue gas desulfurization, including frame, the inside fixed mounting of frame has the material bucket, the top fixed mounting of material bucket has the material cover, the top fixed mounting of material cover has the feed inlet, the outside fixed mounting of material bucket has the vibration subassembly, the bottom fixed mounting of material bucket has the flexible joint flange, the bottom of flexible joint flane and the feed end fixed intercommunication of conveying pipe. This soda ash automatic feeding equipment for flue gas desulfurization, the lower end of spiral auger B extends to the small bore port of material bucket and is tangent with this port, therefore the caked soda ash will be broken in the conveying of spiral auger B, the spiral auger B also can take off the caked soda ash adhered to the inner wall of material bucket with the scraper synchronous rotation in the rotation, and the caked soda ash is scraped off finally, is crushed by spiral auger B, thereby realizes the crushing treatment to the caked soda ash.

Description

Technical Field

[0001] This utility model relates to the field of flue gas desulfurization technology, specifically to an automatic sodium bicarbonate feeding device for flue gas desulfurization. Background Technology

[0002] Chinese patent CN111151118B discloses a boiler flue gas desulfurization system using sodium bicarbonate dry desulfurization, belonging to the category of coal gas flue gas treatment equipment. It includes a furnace body with a flue, and a desulfurization mechanism on the flue. The desulfurization mechanism includes a desulfurization tower with an inlet pipe and an outlet pipe. Powder nozzles are installed on the inner wall of the desulfurization tower, and multiple powder nozzles are connected together at their outer ends via pipes. A conveying trough is installed on the outer wall of the desulfurization tower, with a conveying pipe on the conveying trough and a jet fan inside the conveying pipe. A bellows pipe is installed on the outlet pipe. A stirring mechanism is installed inside the desulfurization tower. The desulfurization mechanism includes a hopper with an inlet pipe and an outlet pipe, and a discharge switch on the outlet pipe. The desulfurization mechanism also includes an inclined screw conveyor, with its inlet end located below the outlet pipe and its outlet end located above the conveying trough. The stirring mechanism improves the desulfurization effect on the flue gas.

[0003] The above describes storing baking soda in a silo. However, if the silo has a large storage space, the baking soda at the top will take a long time to be discharged and used. Since baking soda is in powder form, if it is not discharged and used for a long time, the baking soda powder will clump together after getting damp, which will block the discharge port. At the same time, the baking soda powder will also stick to the inner wall of the silo after getting damp. If it is not cleaned in time, it will cause the silo to become crowded. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides an automatic sodium bicarbonate feeding device for flue gas desulfurization, which has the advantages of automatic feeding and treatment of agglomerated sodium bicarbonate, thus solving the aforementioned problems.

[0005] (II) Technical Solution To achieve the aforementioned purpose of automatic feeding and treatment of agglomerated baking soda, this utility model provides the following technical solution: an automatic baking soda feeding device for flue gas desulfurization, comprising a frame, a material hopper fixedly installed inside the frame, a material cover fixedly installed on the top of the material hopper, a feed hopper fixedly installed on the top of the material cover, a vibration component fixedly installed on the outside of the material hopper, a flexible connecting flange fixedly installed at the bottom of the material hopper, the bottom of the flexible connecting flange being fixedly connected to the feed end of a conveying pipe, a motor reducer A fixedly installed at one end of the conveying pipe, a spiral auger A fixedly installed at the output end of the motor reducer A, a motor reducer B fixedly installed on the top of the material cover, a shaft fixedly installed at the output end of the motor reducer B, a spiral auger B fixedly installed on the outside of the shaft, a collar fixedly installed on the outside of the shaft, an extension rod fixedly installed on the outside of the collar, and a scraper fixedly installed at the other end of the extension rod.

[0006] Preferably, the vibration assembly includes a bracket, which is fixedly installed on the outer wall of the material barrel. A hanging rod is hinged to the inner top of the bracket, and a fixing ring is fixedly installed at the bottom of the hanging rod. A vibration motor is fixedly installed inside the fixing ring, and an eccentric wheel is fixedly installed at the output end of the vibration motor. Hinge seats are fixedly installed on both the inner wall of the bracket and the outer wall of the fixing ring. A spring cover is hinged inside the hinge seat, and a buffer spring is fitted inside the spring cover.

[0007] Preferably, the diameter of the auger B gradually increases from bottom to top, the bottom of the auger B extends downward into the small-diameter port of the hopper and is tangent to the inner wall of the small-diameter port, the height of the extension rod gradually increases in a circular pattern, and the extension rod is staggered from the auger B.

[0008] Preferably, the motor reducer A, motor reducer B, and vibration motor are all connected to the PLC controller via signal connection.

[0009] Preferably, the scraper is V-shaped, and the outer side of the scraper is in contact with the inner wall of the material bucket.

[0010] (III) Beneficial Effects Compared with the prior art, this utility model provides an automatic sodium bicarbonate feeding device for flue gas desulfurization, which has the following beneficial effects: 1. This automatic sodium bicarbonate feeding device for flue gas desulfurization uses a motor reducer B to drive the shaft and auger B to rotate, which can convey sodium bicarbonate downwards. It also uses a motor reducer A to drive the auger A to rotate, which can automatically convey sodium bicarbonate towards the desulfurization tower, thus achieving automatic feeding of sodium bicarbonate.

[0011] 2. In this automatic sodium bicarbonate feeding device for flue gas desulfurization, the lower end of the spiral auger B extends into the small-diameter port of the material hopper and is tangential to the port. Therefore, the clumps of sodium bicarbonate will be broken up during the conveying process of the spiral auger B. At the same time, the rotating spiral auger B will also rotate synchronously with the scraper. The scraper can scrape off the clumps of sodium bicarbonate adhering to the inner wall of the material hopper and finally crush them by the spiral auger B, thereby realizing the crushing treatment of the clumps of sodium bicarbonate.

[0012] 3. The automatic sodium bicarbonate feeding equipment for flue gas desulfurization uses a vibrating motor to drive an eccentric wheel to rotate. The vibration is transmitted to the material barrel through the support. The vibration, in conjunction with the rotating scraper, enables the scraper to quickly remove the sodium bicarbonate clumps on the barrel wall. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is an exploded structural diagram of the present invention; Figure 4 This is a schematic diagram of the structure of the spiral auger, extension rod, and scraper of this utility model; Figure 5 This is a schematic diagram of the structure of the collar, extension rod, and scraper of this utility model; Figure 6 This is a schematic diagram of the structure of the vibration component of this utility model.

[0014] In the diagram: 1. Frame; 2. Material bucket; 3. Material cover; 4. Feed hopper; 5. Vibration assembly; 6. Flexible connection flange; 7. Conveying pipe; 8. Motor reducer A; 9. Spiral auger A; 10. Motor reducer B; 11. Shaft; 12. Spiral auger B; 13. Collar; 14. Extension rod; 15. Scraper; 51. Bracket; 52. Hanger rod; 53. Fixing ring; 54. Vibration motor; 55. Eccentric wheel; 56. Spring cover; 57. Buffer spring; 58. Hinge seat. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-5An automatic sodium bicarbonate feeding device for flue gas desulfurization includes a frame 1, a material hopper 2 fixedly installed inside the frame 1 for storing sodium bicarbonate powder; a material cover 3 fixedly installed on the top of the material hopper 2, and a feed hopper 4 fixedly installed on the top of the material cover 3 for guiding sodium bicarbonate powder into the material hopper 2; and a vibration component 5 fixedly installed on the outside of the material hopper 2 for driving the material hopper 2 to vibrate slightly to ensure that the sodium bicarbonate powder on the hopper wall falls off.

[0017] Please see Figure 1-5 A flexible connecting flange 6 is fixedly installed at the bottom of the material bucket 2. The bottom of the flexible connecting flange 6 is fixedly connected to the feed end of the conveying pipe 7. A motor reducer A8 is fixedly installed at one end of the conveying pipe 7. A spiral auger A9 is fixedly installed at the output end of the motor reducer A8. The spiral auger A9 can be driven to rotate inside the conveying pipe 7 by the motor reducer A8, so as to realize the feeding and conveying of baking soda.

[0018] Please see Figure 1-5 A motor reducer B10 is fixedly installed on the top of the material cover 3. A shaft 11 is fixedly installed at the output end of the motor reducer B10. A spiral auger B12 is fixedly installed on the outer side of the shaft 11. The diameter of the spiral auger B12 gradually increases from bottom to top. The bottom of the spiral auger B12 extends downward into the small-diameter port of the material bucket 2 and is tangential to the inner wall of the small-diameter port. The motor reducer B10 drives the spiral auger B12 to rotate in the material bucket 2, which serves two purposes: conveying baking soda and crushing agglomerated baking soda.

[0019] Please see Figure 1-5 A collar 13 is fixedly installed on the outer side of the shaft 11, and an extension rod 14 is fixedly installed on the outer side of the collar 13. The height of the extension rod 14 gradually increases in a circular pattern, and the extension rod 14 is staggered from the auger B12. A scraper 15 is fixedly installed at the other end of the extension rod 14. The scraper 15 is V-shaped, and its outer side is in contact with the inner wall of the material bucket 2. The rotating auger B12 can rotate synchronously with the scraper 15, and the scraper 15 can scrape off the baking soda adhering to the inner wall of the material bucket 2.

[0020] Please see Figure 6 The vibration assembly 5 includes a bracket 51, which is fixedly installed on the outer wall of the material bucket 2. A hanging rod 52 is hinged to the inner top of the bracket 51, and a fixing ring 53 is fixedly installed at the bottom of the hanging rod 52. A vibration motor 54 is fixedly installed inside the fixing ring 53, and an eccentric wheel 55 is fixedly installed at the output end of the vibration motor 54. The vibration motor 54 drives the eccentric wheel 55 to rotate, thereby generating vibration. This vibration is transmitted to the material bucket 2, which facilitates the vibration of baking soda off the bucket wall.

[0021] Please see Figure 6A hinge seat 58 is fixedly installed on the inner wall of the bracket 51 and the outer wall of the fixing ring 53. A spring cover 56 is hinged inside the hinge seat 58, and a buffer spring 57 is installed inside the spring cover 56. The vibration motor 54 is affected by the eccentric wheel 55, and the vibration motor 54 itself will also shake. The shaking can be relieved by the buffer spring 57, thereby ensuring that the vibration amplitude is not large.

[0022] Please see Figure 1-6 Motor reducer A8, motor reducer B10, and vibration motor 54 are all connected to the PLC controller. Motor reducer A8, motor reducer B10, and vibration motor 54 are all references to existing technology, which will not be described in detail in this application. When using them, the preferred option can be selected provided that the driving conditions are met.

[0023] Working principle: During use, the motor reducer B10 drives the shaft 11 and the auger B12 to rotate, which can convey the baking soda downwards; the motor reducer A8 drives the auger A9 to rotate, which can automatically convey the baking soda towards the desulfurization tower, thus realizing automatic feeding of baking soda.

[0024] The lower end of the auger B12 extends into and is tangential to the small-diameter port of the hopper 2, so the clumps of baking soda will be crushed during the conveying process of the auger B12; at the same time, the rotating auger B12 will also rotate synchronously with the scraper 15, which can scrape off the clumps of baking soda attached to the inner wall of the hopper 2, and finally crush them by the auger B12, thereby achieving the crushing treatment of the clumps of baking soda.

[0025] The vibration motor 54 drives the eccentric wheel 55 to rotate, and the vibration is transmitted to the material bucket 2 through the bracket 51. The vibration, in conjunction with the rotating scraper 15, enables the scraper 15 to quickly remove the baking soda clumps on the bucket wall.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic sodium bicarbonate feeding device for flue gas desulfurization, comprising a frame (1), a material hopper (2) fixedly installed inside the frame (1), a material cover (3) fixedly installed on the top of the material hopper (2), and a feed hopper (4) fixedly installed on the top of the material cover (3), characterized in that: A vibration assembly (5) is fixedly installed on the outside of the material bucket (2). A flexible connection flange (6) is fixedly installed at the bottom of the material bucket (2). The bottom of the flexible connection flange (6) is fixedly connected to the feed end of the conveying pipe (7). A motor reducer A (8) is fixedly installed at one end of the conveying pipe (7). A spiral auger A (9) is fixedly installed at the output end of the motor reducer A (8). A motor reducer B (10) is fixedly installed at the top of the material cover (3). A shaft (11) is fixedly installed at the output end of the motor reducer B (10). A spiral auger B (12) is fixedly installed on the outside of the shaft (11). A collar (13) is fixedly installed on the outside of the shaft (11). An extension rod (14) is fixedly installed on the outside of the collar (13). A scraper (15) is fixedly installed at the other end of the extension rod (14).

2. The automatic sodium bicarbonate feeding device for flue gas desulfurization according to claim 1, characterized in that: The vibration assembly (5) includes a bracket (51), which is fixedly installed on the outer wall of the material bucket (2). A hanging rod (52) is hinged to the top inner part of the bracket (51), and a fixing ring (53) is fixedly installed at the bottom of the hanging rod (52). A vibration motor (54) is fixedly installed inside the fixing ring (53), and an eccentric wheel (55) is fixedly installed at the output end of the vibration motor (54). A hinge seat (58) is fixedly installed on the inner wall of the bracket (51) and the outer wall of the fixing ring (53). A spring cover (56) is hinged inside the hinge seat (58), and a buffer spring (57) is clamped inside the spring cover (56).

3. The automatic sodium bicarbonate feeding device for flue gas desulfurization according to claim 1, characterized in that: The diameter of the spiral auger B (12) gradually increases from bottom to top. The bottom of the spiral auger B (12) extends downward into the small diameter port of the material bucket (2) and is tangent to the inner wall of the small diameter port. The height of the extension rod (14) gradually increases in a circular pattern. The extension rod (14) and the spiral auger B (12) are staggered.

4. The automatic sodium bicarbonate feeding device for flue gas desulfurization according to claim 2, characterized in that: The motor reducer A (8), motor reducer B (10) and vibration motor (54) are all connected to the PLC controller signal.

5. The automatic sodium bicarbonate feeding device for flue gas desulfurization according to claim 1, characterized in that: The scraper (15) is V-shaped, and the outer side of the scraper (15) is in contact with the inner wall of the material bucket (2).

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