Lime powder pulping device

Abstract

The lime powder slurrying device solves the problem that lime powder is prone to hardening and comprises a slurrying assembly and a fluidization assembly, the slurrying assembly comprises a blanking bin, a discharging pipe, a feeding machine and a slurrying bin, the two ends of the discharging pipe are communicated with the blanking bin and the slurrying bin respectively, and the fluidization assembly is arranged on the feeding machine. The blanking bin is located above the pulping bin, the feeder is arranged on the blanking pipe, and the interior of the blanking bin is used for containing lime powder; the main valve is arranged on the main air pipe, the first branch pipe is communicated with the interior of the blanking bin, the first branch pipe is used for blowing air into the blanking bin, due to the fact that the blanking bin is communicated with the first branch pipe, when the feeder is started, the first branch pipe blows air into the blanking bin, lime powder is disturbed by air, and the lime powder is discharged out of the blanking bin. Lime powder cannot be accumulated on the inner wall of the blanking bin, that is, the lime powder cannot be hardened on the inner wall of the blanking bin, and therefore the problem that the lime powder is prone to hardening is solved.

Description

Technical Field

[0001] This utility model relates to the field of wet desulfurization, and in particular to a lime powder slurry preparation device. Background Technology

[0002] In coal gas power generation, a wet desulfurization process using lime-gypsum is employed to desulfurize boiler flue gas. During the lime powder slurry preparation process, the heat generated during lime slaking can easily cause the ash discharge pipe to become caked and blocked. This disrupts the slurry preparation process, requiring workers to physically tap and vibrate the outer wall of the dust silo to barely maintain the material flow, wasting significant manpower and resources and affecting the stable operation of the desulfurization system. Utility Model Content

[0003] The purpose of this invention is to provide a lime powder slurry preparation device that solves the problem of lime powder easily caking.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] This utility model provides a lime powder slurry making device, including a slurry making component and a fluidization component. The slurry making component includes a discharge hopper, a discharge pipe, a feeder and a slurry making hopper. The two ends of the discharge pipe are respectively connected to the discharge hopper and the slurry making hopper. The discharge hopper is located above the slurry making hopper. The feeder is installed on the discharge pipe. The discharge hopper is used to contain lime powder.

[0006] The fluidizing assembly includes an air tank, a main air pipe, a first branch pipe, and a main valve. The two ends of the main air pipe are connected to the air tank and the first branch pipe, respectively. The main valve is installed on the main air pipe. The first branch pipe is connected to the material discharge hopper and is used to blow air into the material discharge hopper.

[0007] Optionally, the discharge hopper has a stacking area, and the first branch pipe communicates with the stacking area.

[0008] Furthermore, the fluidizing assembly also includes a loop pipe and multiple branch pipes, with the first branch pipe connected to the loop pipe and the multiple branch pipes connected at both ends to the accumulation zone.

[0009] Optionally, the pulping assembly further includes a first pneumatic valve and a second pneumatic valve, the first pneumatic valve and the second pneumatic valve being disposed on the feed pipe, and the feeder being located between the first pneumatic valve and the second pneumatic valve.

[0010] Furthermore, the pulping assembly also includes a manual valve, which is disposed on the feed pipe and located above the first pneumatic valve.

[0011] Furthermore, the fluidization assembly also includes a second branch pipe and a third branch pipe, which are disposed on the main air pipe and are also connected to the feed pipe. The feeder is located between the second branch pipe and the third branch pipe.

[0012] Optionally, a water supply pipe is connected to the pulping tank.

[0013] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0014] This utility model discloses a lime powder slurry preparation device. Since the material hopper is connected to the first branch pipe, when the feeder is turned on, the first branch pipe blows air into the material hopper. In this way, the lime powder is disturbed by the gas, and the lime powder will not accumulate on the inner wall of the material hopper. That is, the lime powder will not caking on the inner wall of the material hopper, thus solving the problem of lime powder caking. Attached Figure Description

[0015] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0016] Figure 1 This is a schematic diagram of a lime powder pulping device according to a preferred embodiment of the present invention;

[0017] Figure 2 yes Figure 1 Top view shown;

[0018] Figure 3 This is a partial structural diagram of the feed pipe.

[0019] The reference numerals in the attached figures are explained as follows:

[0020] 1. Pulping assembly; 2. Fluidization assembly; 10. Water supply pipe; 11. Feed hopper; 12. Feed pipe;

[0021] 13. Feeder; 14. Pulping bin; 15. Stacking area; 16. Manual valve; 17. First pneumatic valve;

[0022] 18. Second pneumatic valve; 21. Air tank; 22. Main air pipe; 23. First branch pipe; 24. Main valve; 25. Ring pipe;

[0023] 26. Branch pipe; 27. Check valve; 28. Second branch pipe; 29. ​​Third branch pipe; 100. Water supply electric valve; 231. First valve; 281. Second valve; 291. Third valve; 221. Pressure gauge; 222. Pressure reducing valve. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] like Figure 1 and Figure 2 and Figure 3 As shown, a lime powder slurry preparation device includes a slurry preparation component 1 and a fluidization component 2. The slurry preparation component 1 includes a discharge bin 11, a feeder 13, and a slurry preparation bin 14. The two ends of the discharge pipe 12 are respectively connected to the discharge bin 11 and the slurry preparation bin 14. The outlet end of the discharge bin 11 is connected to the discharge pipe 12. The discharge bin 11 is used to contain lime powder. The discharge bin 11 is located above the slurry preparation bin 14. The feeder 13 is installed on the discharge pipe 12. When the feeder 13 is turned on, the lime powder comes out from the discharge bin 11 and enters the slurry preparation bin 14 through the discharge pipe 12.

[0028] Liquid is circulated in the pulping chamber 14 to dissolve the lime powder. The dissolution generates steam that floats upwards and into the discharge chamber 11. The lime powder in the discharge chamber 11 becomes wet, and the wet lime powder adheres to the inner wall of the discharge chamber 11, easily forming caking.

[0029] The fluidization assembly 2 includes an air tank 21, a main air pipe 22, a first branch pipe 23, and a main valve 24. The two ends of the main air pipe 22 are connected to the air tank 21 and the first branch pipe 23, respectively. The main valve 24 is installed on the main air pipe 22. The first branch pipe 23 is connected to the material drop hopper 11 and is used to blow air into the material drop hopper 11. When the feeder 13 is turned on, the main valve 24 is opened at the same time. The air tank 21 has sufficient pressure and sprays nitrogen gas, which blows into the material drop hopper 11. In this way, the moist lime powder is also blown away. The moist lime powder will not stick to the inner wall of the material drop hopper 11 and will not form caking. Instead, it falls into the pulping hopper 14 along the feed pipe 12.

[0030] The material discharge hopper 11 has a storage area 15. The first branch pipe 23 is connected to the storage area 15. The storage area 15 is in a contracting state from top to bottom, that is, the upper space of the storage area 15 is large and the lower space is small. The storage area 15 gradually shrinks from top to bottom and is located at the bottom of the material discharge hopper 11. In this way, the lime powder in the material discharge hopper 11 gathers in the storage area 15. The first branch pipe 23 blows air in the storage area 15. The blowing air facilitates the caking lime powder to flow downward into the discharge pipe 12.

[0031] The fluidization assembly 2 also includes a ring pipe 25 and multiple branch pipes 26. The first branch pipe 23 is connected to the ring pipe 25. The ring pipe 25 is arranged around the accumulation zone 15. The two ends of the multiple branch pipes 26 are connected to the ring pipe 25 and the accumulation zone 15 respectively. The multiple branch pipes 26 blow air into the accumulation zone 15 from different directions. In this way, the accumulation zone 15 is blown with air without dead corners, and the moist lime powder is blown away without dead corners, so that the moist lime powder does not clump in the accumulation zone 15. The multiple branch pipes 26 also provide support for the ring pipe 25.

[0032] The pulping assembly 1 also includes a first pneumatic valve 17 and a second pneumatic valve 18. The first pneumatic valve 17 and the second pneumatic valve 18 are disposed on the feed pipe 12, and the feeder 13 is located between the first pneumatic valve 17 and the second pneumatic valve 18. The first pneumatic valve 17 and the second pneumatic valve 18 can adjust the flow rate of lime powder.

[0033] The pulping assembly 1 also includes a manual valve 16, which is located on the feed pipe 12 and above the first pneumatic valve 17. The manual valve 16 is normally open and will only be closed when maintenance or repair is required.

[0034] A first valve 231 is installed on the first branch pipe 23, a second valve 281 is installed on the second branch pipe 28, and a third valve 291 is installed on the third branch pipe 29.

[0035] When material is to be discharged from the discharge hopper 11, open the first pneumatic valve 17, and simultaneously open the feeder 13 and the second pneumatic valve 18. At the same time, open the first valve 231 to allow the caking lime powder in the discharge hopper 11 to fall smoothly into the slurry hopper 14. When the discharge is finished, close the first valve 231 and the first pneumatic valve 17, open the second valve 281 and the third valve 291 to blow the residual lime powder in the discharge pipe 12 into the slurry hopper 14, and then close the second valve 281 and the third valve 291.

[0036] The fluidization assembly 2 also includes a second branch pipe 28 and a third branch pipe 29, which are disposed on the main air pipe 22. The second branch pipe 28 and the third branch pipe 29 are also connected to the feed pipe 12. The feeder 13 is located between the second branch pipe 28 and the third branch pipe 29. Through the main air pipe 22, the second branch pipe 28 and the third branch pipe 29 blow air into the feed pipe 12 respectively.

[0037] Steam rises through the feed pipe 12, and the lime powder inside the feed pipe 12 will also be moistened. Therefore, a small amount of moistened lime powder will fall onto the inner wall of the feed pipe 12. After being blown by the second branch pipe 28 and the third branch pipe 29, the moistened lime powder will not clump on the inner wall of the feed pipe 12. Multiple second branch pipes 28 and third branch pipes 29 can be set, and multiple second branch pipes 28 and third branch pipes 29 blow air into the feed pipe 12 from different angles.

[0038] A water supply pipe 10 is connected to the pulping chamber 14. The water supply pipe 10 supplies water to the pulping chamber 14 in real time according to the amount of lime powder in the pulping chamber 14. The water supply pipe 10 is equipped with a water replenishment electric valve 100.

[0039] A one-way valve 27 is also installed on the main air pipe 22. The main valve 24 is located between the one-way valve 27 and the air tank 21. A pressure gauge 221 and a pressure reducing valve 222 are also installed on the main air pipe 22. When the pressure gauge 221 detects that the pressure in the main air pipe 22 exceeds the set range, the pressure reducing valve 222 is manually opened to restore the pressure in the main air pipe 22 to the set range. When the pressure gauge 221 detects that the pressure in the main air pipe 22 is less than the set range, it indicates that the pressure in the main air pipe 22 is too low and the air volume in the air tank 21 is insufficient, and a new air tank 21 needs to be replaced.

[0040] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A lime powder slurry preparation apparatus, comprising a slurry preparation component (1) and a fluidization component (2), characterized in that, The pulping assembly (1) includes a discharge bin (11), a discharge pipe (12), a feeder (13), and a pulping bin (14). The two ends of the discharge pipe (12) are connected to the discharge bin (11) and the pulping bin (14) respectively. The discharge bin (11) is located above the pulping bin (14). The feeder (13) is installed on the discharge pipe (12). The discharge bin (11) is used to contain lime powder. The fluidizing assembly (2) includes an air tank (21), a main air pipe (22), a first branch pipe (23), and a main valve (24). The two ends of the main air pipe (22) are connected to the air tank (21) and the first branch pipe (23), respectively. The main valve (24) is installed on the main air pipe (22). The first branch pipe (23) is connected to the material drop hopper (11) and is used to blow air into the material drop hopper (11).

2. The lime powder slurry preparation device according to claim 1, characterized in that, The material discharge bin (11) has a stacking area (15), and the first branch pipe (23) is connected to the stacking area (15).

3. The lime powder slurry preparation device according to claim 2, characterized in that, The fluidization assembly (2) further includes a ring pipe (25) and multiple branch pipes (26). The first branch pipe (23) is connected to the ring pipe (25). The ring pipe (25) is arranged around the accumulation area (15). The two ends of the multiple branch pipes (26) are respectively connected to the ring pipe (25) and the accumulation area (15).

4. The lime powder slurry preparation device according to claim 1, characterized in that, The pulping assembly (1) further includes a first pneumatic valve (17) and a second pneumatic valve (18), the first pneumatic valve (17) and the second pneumatic valve (18) are disposed on the feed pipe (12), and the feeder (13) is located between the first pneumatic valve (17) and the second pneumatic valve (18).

5. The lime powder slurry preparation device according to claim 4, characterized in that, The pulping assembly (1) also includes a manual valve (16), which is disposed on the feed pipe (12) and is located above the first pneumatic valve (17).

6. The lime powder slurry preparation apparatus according to claim 5, characterized in that, The fluidizing assembly (2) further includes a second branch pipe (28) and a third branch pipe (29), which are disposed on the main air pipe (22). The second branch pipe (28) and the third branch pipe (29) are also connected to the feed pipe (12), and the feeder (13) is located between the second branch pipe (28) and the third branch pipe (29).

7. The lime powder slurry preparation apparatus according to claim 1, characterized in that, The pulping chamber (14) is connected to an external water supply pipe (10).

Images