Powder particle sampling device
By designing a movable and rotatable collection column and collection box structure, the problem of the powder collection device disturbing flow and leakage in the discharge pipe is solved, and efficient and leak-free powder collection is achieved to ensure the combustion effect.
Patent Information
- Application Number
- CN202422339989.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The existing powder collection device is prone to disrupt the flow uniformity of coal powder in the discharge pipe, resulting in poor combustion effect and a problem of coal powder leakage.
A collection column including an upper and lower axial discharge tube and a left and right axial discharge tube is designed. The sleeve is equipped with a collection column that can be inserted into the discharge tube. The collection column can be moved left and right and rotatable, and is equipped with a collection tank, a drop tank and a collection box. The acquisition column is inserted and exited from the discharge tube by a motor drive to collect powder particles.
It achieves that the powder flow uniformity is not disturbed during the collection process, prevents powder leakage, ensures combustion effect, is simple in structure and is convenient to use.
Smart Images
Figure CN223179826U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal-fired boilers, in particular to a powder particle sampling device. Background Technique
[0002] Boilers generally adopt the pulverized coal suspension combustion method. The fineness of pulverized coal is an important parameter for boiler combustion adjustment, which directly affects the safety and economy of boiler operation. The finer the pulverized coal, the higher the burnout degree, the smaller the mechanical and chemical unburned losses, and the lower the fly ash residual carbon content. At the same time, it helps to reduce boiler slagging (commonly known as coking). Therefore, during boiler operation, it is necessary to accurately and timely measure and control the fineness of pulverized coal according to the change of the coal quality burned by the boiler, so as to maintain the fineness of pulverized coal within a certain range, make the boiler operate in the best state, and control the cost of pulverized coal.
[0003] The determination of the fineness of pulverized coal generally adopts the electric power industry standard DL / T567.5-95 Test Methods for Fuels in Thermal Power Plants, namely "Determination of the Fineness of Pulverized Coal". That is, a certain mass of pulverized coal is weighed and placed in a specified test sieve. After complete screening, the fineness of pulverized coal is calculated according to the mass of residual pulverized coal on the test sieve. The existing pulverized coal sampling device is usually collected by a rotating screw in the feed pipe. However, this sampling device has the following defects in actual use: 1. Since the flow rate of the mixture of pulverized coal and air in the feed pipe is relatively fast, the spiral sampling rod in the center of the feed pipe is easy to disrupt the flow uniformity of the pulverized coal, resulting in uneven distribution of the pulverized coal below the spiral sampling rod, leading to poor combustion effect; 2. Since a part of the spiral sampling rod is located inside the feed pipe and the other part is located outside the feed pipe, there will be gaps on both sides of the pipe, which is easy to cause the leakage of pulverized coal in the feed pipe. Content of the Utility Model
[0004] In view of the above situation, in order to make up for the deficiencies of the prior art, the purpose of the utility model is to provide a powder particle sampling device, which effectively solves the problem that the existing powder sampling device is inconvenient to use.
[0005] The technical solution it adopts is that the utility model includes a feed pipe in the up and down axial direction. A sleeve with a left and right axial direction and an opening facing right is arranged on the left side of the feed pipe. A collecting column that can be inserted into the feed pipe is coaxially arranged in the sleeve. The collecting column can move left and right and can rotate. A collecting groove is opened at the upper end of the collecting column. A dropping groove is opened at the lower end of the sleeve. A collecting box that can communicate with the collecting groove and has an opening facing up is detachably connected in the dropping groove. A horizontal groove in the left and right direction is opened on the rear side wall of the sleeve. An inclined groove communicating with the left end of the horizontal groove is opened on the rear side wall of the sleeve. An inserting column inserted into the inclined groove is arranged on the collecting column.
[0006] Compared with the prior art, the beneficial effects of the present utility model are as follows: It can collect the powder particles in the blanking pipe, and only insert into the blanking pipe during the collection process, and is not located in the blanking pipe when the collection operation is not carried out, preventing the disturbance of the uniform flow of the powder and resulting in poor combustion effect. At the same time, when collecting, the inside and outside of the blanking pipe are not connected, preventing the leakage of the powder. Brief Description of the Drawings
[0007] Figure 1 is the front view axonometric drawing of the present utility model.
[0008] Figure 2 is the full-section top view axonometric drawing of the present utility model.
[0009] Figure 3 is the full-section front view axonometric drawing of the present utility model.
[0010] Figure 4 is the present utility model Figure 2 The enlarged view of A in
[0011] Reference Signs:
[0012] 1, blanking pipe; 2, sleeve; 3, collection column; 4, collection groove; 5, dropping groove; 6, collection box; 7, horizontal groove; 8, inclined groove; 9, insertion post; 10, sliding groove; 11, annular groove; 12, slider; 13, stud; 14, motor; 15, fixing plate; 16, lifting plate; 17, spring; 18, baffle. Detailed Description of the Preferred Embodiments
[0013] In order to make the above-mentioned objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to provide a thorough understanding of the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.
[0014] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model herein are for the purpose of describing specific embodiments only and are not intended to limit the utility model. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0015] The following further details the specific embodiments of the present utility model with reference to the accompanying drawings.
[0016] Consisting of Figures 1 to 4Provided is a powder particle collection device, including a blanking pipe 1 in the up-and-down axial direction. On the left side of the blanking pipe 1, there is a sleeve 2 in the left-and-right axial direction with an opening facing right. Inside the sleeve 2, there is a collection column 3 coaxially arranged that can be inserted into the blanking pipe 1. The collection column 3 can move left and right and can rotate. At the upper end of the collection column 3, there is a collection groove 4. At the lower end of the sleeve 2, there is a dropping groove 5. Disassemblably connected in the dropping groove 5 is a collection box 6 that can communicate with the collection groove 4 and has an opening facing up. On the rear side wall of the sleeve 2, there is a horizontal groove 7 in the left-and-right direction, and on the rear side wall of the sleeve 2, there is an inclined groove 8 that communicates with the left end of the horizontal groove 7. On the collection column 3, there is an insertion post 9 inserted into the inclined groove 8.
[0017] In order to move the collection column 3 left and right, at the upper end of the sleeve 2, there is a sliding groove 10 in the left-and-right direction and penetrating up and down. On the collection column 3, there is a ring groove 11 coaxially arranged on the right side of the insertion post 9. Slidably connected in the sliding groove 10 is a slider 12 inserted into the ring groove 11. Inside the sliding groove 10, there is a screw column 13 threadedly connected to the slider 12 and capable of rotating.
[0018] In order to rotate the screw column 13, at the left end of the sleeve 2, there is a motor 14. The left end of the screw column 13 penetrates the sleeve 2 and is coaxially and fixedly connected to the output shaft of the motor 14.
[0019] In order to facilitate the operation of the collection box 6, on the blanking pipe 1, there is a fixing plate 15. Slidably connected to the fixing plate 15 is a lifting plate 16 that can contact the collection box 6.
[0020] In order to facilitate the movement of the lifting plate 16, the lower end of the lifting plate 16 is connected to the fixing plate 15 through a spring 17.
[0021] In order to facilitate the fixing of the collection box 6, on the lifting plate 16, there is a baffle 18.
[0022] When the present utility model is in use, first, when powder particle collection is required, the motor 14 is started to rotate forward. The motor 14 drives the screw column 13 to rotate. The rotation of the screw column 13 drives the slider 12 to slide rightward in the sliding groove 10, and then drives the collection column 3 to move rightward through the ring groove 11. The collection column 3 drives the insertion post 9 thereon to move rightward in the horizontal groove 7. After moving rightward for a certain distance, the collection column 3 is inserted into the blanking pipe 1. At this time, the motor 14 is turned off, and the powder in the blanking pipe 1 drops into the collection groove 4 to realize the collection of particles.
[0023] After a certain amount of samples are collected, the motor 14 is started to reverse at this time. The motor 14 drives the stud 13 to reverse, and then drives the slider 12 to move leftward in the sliding groove 10, driving the samples in the collection groove 4 to move leftward. After moving leftward for a certain distance, the collection column 3 returns to the initial position. The motor 14 continues to rotate, continuously driving the collection column 3 to move leftward, and at the same time driving the plug column 9 to move leftward in the horizontal groove 7. After moving leftward for a certain distance, the plug column 9 moves from the horizontal groove 7 into the inclined groove 8. At this time, due to the effect of the inclined groove 8, while driving the collection column 3 to move leftward, it rotates, and then drives the sample in the collection groove 4 to rotate. After rotating a certain angle, the collection groove 4 rotates to communicate with the dropping groove 5, and the samples in the collection groove 4 fall into the collection box 6 through the dropping groove 5;
[0024] After the collection is completed, start the motor 14 to rotate forward, so that the collection column 3 moves rightward again and rotates forward, so that the collection groove 4 rotates upward again, and then turn off the motor 14. At this time, pull down the lifting plate 16, and the lifting plate 16 drives the collection box 6 to be pulled out from the dropping groove 5, and the collection box 6 can be taken off the lifting plate 16 for inspection.
[0025] Compared with the prior art, the beneficial effects of the present utility model are as follows: The provided collection column, collection groove, plug column, etc. can realize the collection of powder particles in the feeding pipe. At the same time, it is only inserted into the feeding pipe during the collection process and is not located in the feeding pipe when not performing the collection operation, preventing the disturbance of the uniform flow of the powder and resulting in poor combustion effect. At the same time, the inside and outside of the feeding pipe are not connected during the collection, preventing the leakage of the powder. This structure is simple, novel in concept, convenient to use, and has strong practicability.
[0026] It should be pointed out that according to the needs of implementation, each component described in the embodiments of the present utility model can be split into more components, or two or more components or parts of components can be combined into new components to achieve the purpose of the embodiments of the present utility model.
[0027] The above embodiments only represent several implementation manners of the present utility model, and their descriptions are relatively specific and detailed, but should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model should be subject to the appended claims.
Claims
1. A powder particle sampling device, comprising a vertical feeding pipe (1) in the axial direction, characterized in that, On the left side of the blanking pipe (1), there is a sleeve (2) with a left - right axial direction and an opening facing right. Inside the sleeve (2), there is a collection column (3) coaxially arranged that can be inserted into the blanking pipe (1). The collection column (3) can move left - right and rotate. At the upper end of the collection column (3), there is a collection groove (4). At the lower end of the sleeve (2), there is a dropping groove (5). Inside the dropping groove (5), there is a collection box (6) detachably connected and communicating with the collection groove (4) with an opening facing up. On the rear side wall of the sleeve (2), there is a horizontal groove (7) in the left - right direction, and on the rear side wall of the sleeve (2), there is an inclined groove (8) communicating with the left end of the horizontal groove (7). On the collection column (3), there is an insertion post (9) inserted into the inclined groove (8).
2. The powder particle sampling device according to claim 1, wherein, At the upper end of the sleeve (2), there is a sliding groove (10) in the left - right direction and penetrating up and down. On the collection column (3), there is a ring groove (11) coaxially arranged to the right of the insertion post (9). Inside the sliding groove (10), there is a sliding block (12) slidably connected and inserted into the ring groove (11). Inside the sliding groove (10), there is a screw post (13) threadedly connected to the sliding block (12) and capable of rotating.
3. The powder particle sampling device according to claim 1, characterized in that, On the left end of the sleeve (2), there is a motor (14). The left end of the screw post (13) penetrates the sleeve (2) and is coaxially fixedly connected to the output shaft of the motor (14).
4. The powder particle sampling device according to claim 1, wherein, On the blanking pipe (1), there is a fixed plate (15). On the fixed plate (15), there is a lifting plate (16) slidably connected and capable of contacting the collection box (6).
5. The powder particle sampling device according to claim 4, wherein The lower end of the lifting plate (16) is connected to the fixed plate (15) through a spring (17).
6. The powder particle sampling device according to claim 4, wherein, On the lifting plate (16), there is a baffle (18).