Brown coal uniform blanking airlock distributor
By designing a lignite uniform feeding airlock distributor with a trapezoidal outer shell and valve plates that open and close alternately, the problems of external air entering and uneven heating during the lignite drying process were solved, achieving sealing and uniform distribution, and improving drying efficiency.
Patent Information
- Application Number
- CN202423023139.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-09
AI Technical Summary
During the drying process of lignite, a single feeding port can easily allow external air to enter, increasing the internal oxygen content and affecting the drying effect. In addition, uneven heating between the center and the edge of the coal pile results in a slow drying speed.
A lignite uniform feeding airlock distributor was designed, comprising a trapezoidal outer shell, valve shell, guide inclined plate, valve plate, counterweight handle, and inclined guide pipe. It achieves double-layer airlock, uniform feeding, and material distribution functions. Through the alternating opening and closing of the valve plate and the design of the inclined guide pipe, sealing and uniform distribution are ensured.
It achieves double-layer airlock to ensure airtightness, reduce the entry of external air, and improve drying efficiency. It also reduces the height of the coal pile and improves drying efficiency and uniformity through uniform material distribution and separation functions.
Smart Images
Figure CN223509139U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material distribution equipment, specifically a lignite uniform feeding airlock material distribution equipment. Background Technology
[0002] Lignite, also known as coking coal, is a brownish-black, dull, low-grade coal that falls between peat and bituminous coal. It is highly chemically reactive, easily weathers in air, and is difficult to store and transport. Its combustion causes severe air pollution, requiring washing and refining before use.
[0003] Lignite that has undergone washing needs to be dried to reduce its internal moisture content. During drying, lignite is usually poured directly onto the material bed of the dryer using a distributor. In a dryer with a single distributor, on the one hand, external air can easily enter the drying chamber and exhaust chamber through the distributor, increasing the internal oxygen content and affecting the drying effect, resulting in poor air retention. On the other hand, with only one distributor outlet, the lignite forms a coal pile on the material bed, and the heating conditions at the center and edges of the coal pile are significantly different, resulting in a slower rate of thorough drying.
[0004] Now, a novel lignite uniform feeding airlock distributor is proposed to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a lignite uniform feeding and airlocking material distributor to solve the problem of poor airlocking ability mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a lignite uniform feeding airlock distributor, comprising a trapezoidal outer shell, a second valve shell mounted on the top flange of the trapezoidal outer shell, a first valve shell mounted on the top flange of the second valve shell, guide inclined plates fixedly connected to the front and rear ends and left and right sides of the first and second valve shells respectively, side shells fixedly connected to the left sides of the first and second valve shells respectively, a valve shaft movably connected between the front and rear ends of the side shells, a valve plate fixedly connected to the right side of the valve shaft, a counterweight handle fixedly connected obliquely to the front and rear ends of the valve shaft respectively, a counterweight block fixedly connected to one side of the counterweight handle, oblique guide pipes welded obliquely to both sides of the bottom of the trapezoidal outer shell, a side distribution pipe welded to the bottom end of the oblique guide pipes, and a central distribution pipe welded to the middle position of the bottom of the trapezoidal outer shell.
[0007] As a further technical solution of this utility model, the trapezoidal outer shell, the first valve shell, and the second valve shell are internally connected, and the first valve shell and the second valve shell have the same shape and size.
[0008] As a further technical solution of this utility model, the top end of the valve plate and the bottom end of the guide inclined plate are attached to each other, and the front and rear ends of the valve plate are respectively attached to the front and rear ends of the interior of the first valve housing.
[0009] As a further technical solution of this utility model, the inclined guide tube and the side fabric tube are symmetrically distributed about the vertical center line of the trapezoidal shell, and the interiors of the trapezoidal shell, the inclined guide tube, and the side fabric tube are connected.
[0010] As a further technical solution of this utility model, the vertical center lines of the trapezoidal outer shell and the central fabric tube coincide, and the bottom ends of the side fabric tubes and the central fabric tube are flush.
[0011] As a further technical solution of this utility model, a first cylindrical shell is provided between the front and rear ends inside the trapezoidal outer shell, and two sets of second cylindrical shells are provided below the first cylindrical shell. Springs are movably connected to the front and rear ends of the first and second cylindrical shells respectively. A connecting plate is welded to the end of the spring away from the first and second cylindrical shells. An elastic cloth dust cover is movably connected between the first cylindrical shell and the connecting plate. Servo motors are installed at the rear ends inside the first and second cylindrical shells respectively. A flexible shaft is movably connected to the output end of the servo motor. A rubber hammer is provided at the end of the flexible shaft. The end of the connecting plate away from the spring is fixedly connected to the inner wall of the trapezoidal outer shell. The flexible shaft is elastic.
[0012] Compared with the prior art, the beneficial effects of this utility model are: the lignite uniform feeding airlock distributor not only realizes the function of double-layer airlock, but also realizes the function of uniform material distribution and uniform material division;
[0013] (1) By setting a first valve shell, a guide inclined plate, a side shell, a valve shaft, a valve plate, a counterweight handle, a counterweight block, and a second valve shell, when in use, the belt conveyor transports the lignite that has undergone the coal washing process to the top of the first valve shell. As the lignite is poured into the first valve shell, the guide inclined plate gathers the lignite, and the valve plate supports the lignite. As the weight of the lignite exceeds the weight of the two sets of counterweight blocks, the counterweight handle tilts upward, and the valve plate tilts downward, pouring the lignite into the second valve shell below. As the amount of lignite on the valve plate decreases, under the pressure of the counterweight block, the valve plate tilts upward and resets. Under the same weight pressure, the valve plate in the second valve shell pours the lignite into the trapezoidal outer shell. The two valve plates open and close alternately, resulting in better sealing and realizing the function of double-layer airlock.
[0014] (2) By setting up inclined guide pipes, side distribution pipes and central distribution pipes, when in use, lignite enters into the trapezoidal shell. The lignite inside the trapezoidal shell is divided into three parts. The lignite on both sides falls from the inclined guide pipes and side distribution pipes onto the material bed of the dryer, and the lignite in the center falls into the material bed below through the central distribution pipe. This reduces the height of the coal pile and increases the quantity, which can improve the level of uniformity, improve the drying efficiency, and realize the function of uniform material distribution.
[0015] (3) By setting up a first cylinder shell, a second cylinder shell, a connecting plate, a spring, an elastic cloth dust cover, a servo motor, a flexible shaft, and a rubber hammer, when in use, as lignite falls down from the trapezoidal outer shell, the first cylinder shell receives the falling lignite. Some lignite impacts the first cylinder shell and disperses to both sides, while some lignite falls directly into the central feeding pipe below. Some of the lignite dispersed to both sides falls into the inclined guide pipe and falls from the side feeding pipe, while the other part falls down to the second cylinder shell and is dispersed to both sides by the second cylinder shell. The spring can alleviate the impact of lignite on the first and second cylinder shells, and the elastic cloth dust cover prevents lignite from getting stuck in the spring. The servo motor drives the flexible shaft to swing at high speed, and the rubber hammer at its end strikes the first and second cylinder shells to generate vibration, which can prevent lignite from clogging inside the trapezoidal outer shell and achieve the function of uniform material distribution. Attached Figure Description
[0016] Figure 1 This is a front view structural diagram of the present utility model;
[0017] Figure 2 This is an enlarged structural schematic diagram of the front cross-section of the first valve shell of this utility model;
[0018] Figure 3 This is a front view cross-sectional structural diagram of the trapezoidal shell of this utility model;
[0019] Figure 4 This is an enlarged side view cross-sectional schematic diagram of the first cylindrical shell of this utility model.
[0020] In the diagram: 1. Trapezoidal outer shell; 2. First valve shell; 3. Guide ramp; 4. Side shell; 5. Valve shaft; 6. Valve plate; 7. Counterweight handle; 8. Counterweight block; 9. Second valve shell; 10. Inclined guide tube; 11. Side feeding tube; 12. Central feeding tube; 13. First cylindrical shell; 14. Second cylindrical shell; 15. Connecting plate; 16. Spring; 17. Elastic cloth dust cover; 18. Servo motor; 19. Flexible shaft; 20. Rubber hammer head. Detailed Implementation
[0021] 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.
[0022] Example: Please refer to Figure 1-4 A lignite uniform feeding airlock distributor includes a trapezoidal outer shell 1, a second valve shell 9 mounted on the top flange of the trapezoidal outer shell 1, a first valve shell 2 mounted on the top flange of the second valve shell 9, guide inclined plates 3 fixedly connected to the front and rear ends and left and right sides of the first valve shell 2 and the second valve shell 9, a side shell 4 fixedly connected to the left side of the first valve shell 2 and the second valve shell 9, a valve shaft 5 movably connected between the front and rear ends of the side shell 4, a valve plate 6 fixedly connected to the right side of the valve shaft 5, a counterweight handle 7 fixedly connected obliquely to the front and rear ends of the valve shaft 5, and a counterweight block 8 fixedly connected to one side of the counterweight handle 7.
[0023] The trapezoidal outer shell 1, the first valve shell 2, and the second valve shell 9 are internally connected. The first valve shell 2 and the second valve shell 9 have the same shape and size. The top of the valve plate 6 is attached to the bottom of the guide inclined plate 3. The front and rear ends of the valve plate 6 are respectively attached to the front and rear ends of the interior of the first valve shell 2. The inclined guide pipe 10 and the side distribution pipe 11 are symmetrically distributed about the vertical center line of the trapezoidal outer shell 1. The trapezoidal outer shell 1, the inclined guide pipe 10, and the side distribution pipe 11 are internally connected, forming a double-layer airlock for better sealing.
[0024] Specifically, such as Figure 1 and Figure 2 As shown, the guide plate 3 gathers lignite, and the valve plate 6 supports the lignite. As the weight of the lignite exceeds the weight of the two sets of counterweights 8, the counterweight handle 7 tilts upward, and the valve plate 6 tilts downward, pouring the lignite into the second valve shell 9 below. As the amount of lignite on the valve plate 6 decreases, under the pressure of the counterweights 8, the valve plate 6 tilts upward and returns to its original position. Under the same weight pressure, the valve plate 6 in the second valve shell 9 pours the lignite into the trapezoidal outer shell 1. The two valve plates 6 open and close alternately, resulting in better sealing.
[0025] The bottom of the trapezoidal outer shell 1 is provided with oblique guide pipes 10 on both sides. The bottom of the oblique guide pipes 10 is provided with side material distribution pipes 11. The middle of the bottom of the trapezoidal outer shell 1 is provided with central material distribution pipes 12. The vertical center lines of the trapezoidal outer shell 1 and the central material distribution pipe 12 coincide. The bottom ends of the side material distribution pipes 11 and the central material distribution pipe 12 are flush, resulting in uniform material distribution and higher drying efficiency.
[0026] Specifically, such as Figure 1 and Figure 3As shown, the lignite entering the trapezoidal outer shell 1 is divided into three parts. The lignite on both sides falls onto the material bed of the dryer through the inclined guide pipe 10 and the side distribution pipe 11, while the lignite in the center falls onto the material bed below through the central distribution pipe 12. This reduces the height of the coal pile and increases the quantity, thereby improving the homogenization level and increasing the drying efficiency.
[0027] A first cylindrical shell 13 is provided between the front and rear ends inside the trapezoidal outer shell 1. Two sets of second cylindrical shells 14 are provided below the first cylindrical shell 13. Springs 16 are movably connected to the front and rear ends of the first cylindrical shell 13 and the second cylindrical shell 14 respectively. A connecting plate 15 is welded to the end of the spring 16 away from the first cylindrical shell 13 and the second cylindrical shell 14. An elastic cloth dust cover 17 is movably connected between the first cylindrical shell 13 and the connecting plate 15. Servo motors 18 are installed at the rear ends inside the first cylindrical shell 13 and the second cylindrical shell 14 respectively. A flexible shaft 19 is movably connected to the output end of the servo motor 18. A rubber hammer 20 is provided at the end of the flexible shaft 19. The end of the connecting plate 15 away from the spring 16 is fixedly connected to the inner wall of the trapezoidal outer shell 1. The flexible shaft 19 is elastic and the material is distributed more evenly.
[0028] Specifically, such as Figure 3 and Figure 4 As shown, the first cylindrical shell 13 receives the falling lignite. Some of the lignite impacts the first cylindrical shell 13 and disperses to both sides, while some of the lignite falls directly into the central distribution pipe 12 below. Some of the lignite dispersed to both sides falls into the inclined guide pipe 10 and falls from the side distribution pipe 11, while the other part falls downward to the second cylindrical shell 14 and is dispersed to both sides by the second cylindrical shell 14. The spring 16 can alleviate the impact of lignite on the first cylindrical shell 13 and the second cylindrical shell 14, while the elastic cloth dust cover 17 prevents lignite from getting stuck in the spring 16. The servo motor 18 drives the flexible shaft 19 to swing at high speed, and the rubber hammer 20 at its end strikes the first cylindrical shell 13 and the second cylindrical shell 14 to generate vibration, which can prevent lignite from clogging inside the trapezoidal outer shell 1.
[0029] Working principle: In use, the belt conveyor first transports the lignite that has undergone the coal washing process to the top of the first valve shell 2. As the lignite is poured into the first valve shell 2, the guide plate 3 gathers the lignite, and the valve plate 6 supports the lignite. As the weight of the lignite exceeds the weight of the two sets of counterweights 8, the counterweight handle 7 tilts upward, and the valve plate 6 tilts downward, pouring the lignite into the second valve shell 9 below. As the amount of lignite on the valve plate 6 decreases, under the pressure of the counterweights 8, the valve plate 6 tilts upward and returns to its original position. Under the same weight pressure, the valve plate 6 in the second valve shell 9 pours the lignite into the trapezoidal outer shell 1. The two valve plates 6 open and close alternately, resulting in better sealing. As lignite falls downwards from the trapezoidal outer shell 1, the first cylindrical shell 13 receives the falling lignite. Some lignite impacts the first cylindrical shell 13 and disperses to both sides, while some lignite falls directly into the central distribution pipe 12 below. Some of the lignite dispersed to both sides falls into the inclined guide pipe 10 and falls from the side distribution pipe 11, while the other part falls downwards to the second cylindrical shell 14 and is dispersed to both sides by the second cylindrical shell 14. The spring 16 can alleviate the impact of lignite on the first cylindrical shell 13 and the second cylindrical shell 14, while the elastic cloth dust cover 17 prevents lignite from getting stuck in the spring 16. The servo motor 18 drives the flexible shaft 19 to swing at high speed, and the rubber hammer 20 at its end strikes the first cylindrical shell 13 and the second cylindrical shell 14 to generate vibration, which can prevent lignite from clogging inside the trapezoidal outer shell 1. Lignite enters the trapezoidal outer shell 1 and is divided into three parts. The lignite on both sides falls onto the material bed of the dryer through the inclined guide pipe 10 and the side distribution pipe 11, while the lignite in the center falls onto the material bed below through the central distribution pipe 12. This reduces the height of the coal pile and increases its quantity, thereby improving the homogenization level and increasing the drying efficiency.
[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A lignite uniform feeding airlock distributor, comprising a trapezoidal outer shell (1), characterized in that: The top flange of the trapezoidal outer shell (1) is fitted with a second valve shell (9), and the top flange of the second valve shell (9) is fitted with a first valve shell (2). The front and rear ends and the left and right sides of the first valve shell (2) and the second valve shell (9) are respectively fixedly connected with guide plates (3). The left side of the first valve shell (2) and the second valve shell (9) are respectively fixedly connected with side shells (4). The front and rear ends of the side shells (4) are movably connected with valve shafts (5). The right side of the valve shafts (5) is fixedly connected with valve plates (6). The front and rear ends of the valve shafts (5) are respectively fixedly connected with counterweight handles (7). The side of the counterweight handles (7) is fixedly connected with a counterweight block (8). The two sides of the bottom of the trapezoidal outer shell (1) are respectively welded with oblique guide pipes (10). The bottom end of the oblique guide pipes (10) is welded with a side feeding pipe (11). The middle position of the bottom end of the trapezoidal outer shell (1) is welded with a central feeding pipe (12).
2. The lignite uniform feeding airlock distributor according to claim 1, characterized in that: The trapezoidal outer shell (1), the first valve shell (2), and the second valve shell (9) are internally connected, and the first valve shell (2) and the second valve shell (9) have the same shape and size.
3. The lignite uniform feeding airlock distributor according to claim 1, characterized in that: The top end of the valve plate (6) and the bottom end of the guide plate (3) are attached together, and the front and rear ends of the valve plate (6) are attached to the front and rear ends of the first valve shell (2) respectively.
4. The lignite uniform feeding airlock distributor according to claim 1, characterized in that: The oblique guide tube (10) and the side fabric tube (11) are symmetrically distributed about the vertical center line of the trapezoidal shell (1), and the interiors of the trapezoidal shell (1), the oblique guide tube (10), and the side fabric tube (11) are connected.
5. The lignite uniform feeding airlock distributor according to claim 1, characterized in that: The vertical center lines of the trapezoidal outer shell (1) and the central fabric tube (12) coincide, and the bottom ends of the side fabric tubes (11) and the central fabric tube (12) are flush.
6. The lignite uniform feeding airlock distributor according to claim 1, characterized in that: A first cylindrical shell (13) is provided between the front and rear ends inside the trapezoidal outer shell (1). Two sets of second cylindrical shells (14) are provided below the first cylindrical shell (13). Springs (16) are movably connected to the front and rear ends of the first cylindrical shell (13) and the second cylindrical shell (14). A connecting plate (15) is welded to the end of the spring (16) away from the first cylindrical shell (13) and the second cylindrical shell (14). An elastic cloth dust cover (17) is movably connected between the first cylindrical shell (13) and the connecting plate (15). A servo motor (18) is installed at the rear end inside the first cylindrical shell (13) and the second cylindrical shell (14). A flexible shaft (19) is movably connected to the output end of the servo motor (18). A rubber hammer (20) is provided at the end of the flexible shaft (19). The end of the connecting plate (15) away from the spring (16) is fixedly connected to the inner wall of the trapezoidal outer shell (1). The flexible shaft (19) is elastic.