Raw coal bunker capable of being divided

Abstract

The utility model relates to the technical field of fire coal of thermal power generation boilers, in particular to a raw coal bunker capable of being divided. A raw coal bunker capable of being divided comprises an installation frame, a plurality of coal bunkers are fixedly installed in the installation frame, each coal bunker comprises a coal bucket on the upper portion and a plurality of inverted-cone-shaped divided bunkers on the lower portion, discharging ports are formed in the bottoms of the divided bunkers, and the contact portion of every two adjacent divided bunkers is a protruding portion. Partition plates for separating the adjacent branch bins are arranged in the coal bin, the bottoms of the partition plates make contact with the protruding parts, and a lifting mechanism for controlling the partition plates is arranged at the top of the coal bin. The coal bunker can be divided into a plurality of independent coal bunkers through the partition plates arranged in the coal bunker and used for storing different coal types, so that each branch bunker can output coal as fired of the same variety during coal feeding, and the combustion efficiency can be kept stable when the coal as fired of the same variety is combusted in the hearth; and therefore, the thermal power unit can meet the power generation requirement during new energy peak regulation.

Description

Technical Field

[0001] The utility model relates to the technical field of coal - fired technology for thermal power generation boilers, and particularly relates to a raw coal bunker with separable bins. Background Art

[0002] Because new - energy power stations are developing rapidly, in thermal power plants, generator sets need to cooperate with new - energy peak regulation. Existing coal bunkers usually store all the coal for furnace feeding of different varieties together. However, since the varieties of coal for furnace feeding are different, their calorific values are also different. Therefore, when the coal bunker feeds coal, it will input different varieties of coal for furnace feeding into the furnace for combustion, which has no impact on thermal power units under normal working conditions. But under the requirements of new - energy peak regulation, the combustion efficiency of the furnace needs to be maintained stably, and different varieties of coal for furnace feeding cannot achieve stability when burning simultaneously. Content of the Utility Model

[0003] The purpose of the utility model is to provide a raw coal bunker with separable bins to solve the problem that the existing coal bunker cannot adapt to new - energy peak - regulation work.

[0004] To solve the above - mentioned technical problems, the utility model adopts the following technical solutions:

[0005] A raw coal bunker with separable bins includes a mounting frame. Inside the mounting frame, a plurality of coal bunkers are fixedly installed. Each coal bunker includes a coal hopper above and a plurality of inverted - conical bins below. An outlet is opened at the bottom of each bin. The contact part between two adjacent bins is a protruding part. Inside the coal bunker, there is a partition plate separating adjacent bins. The bottom of the partition plate contacts the protruding part. At the top of the coal bunker, there is a lifting mechanism for controlling the partition plate.

[0006] A further technical solution is that the lifting mechanism includes a lifting motor fixedly installed at the top of the coal bunker. A lead screw is fixedly connected to the output shaft of the lifting motor. A connecting plate is threadedly connected to the lead screw. One end of the connecting plate is fixedly connected to the top of the partition plate.

[0007] A further - more technical solution is that fixing holes communicating with the inside are provided on both sides of the coal bunker. A support rod is provided on the outer wall of the coal bunker. One end of the support rod is matched with a fixing hole. A driven gear is sleeved on the support rod. An internal thread is provided on the inner wall of the driven gear. The driven gear is threadedly connected to the support rod. The side of the driven gear is rotatably connected to the outer wall of the coal bunker. A driving motor is fixedly installed at the top of the coal bunker. A driving gear is fixedly connected to the output shaft of the driving motor. The driving gear is in transmission cooperation with the driven gear.

[0008] A further - more technical solution is that an anti - detachment block is fixedly connected to the end of the support rod.

[0009] A further technical solution is that a fixing groove is provided at the bottom of the partition board, and the fixing groove cooperates with the protruding part.

[0010] A further technical solution is that the coal bunker includes a two-part coal bunker and a three-part coal bunker. The two-part coal bunker includes two sub-bunkers, and the three-part coal bunker includes three sub-bunkers.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] By arranging a partition board in the coal bunker, the present utility model can separate multiple independent coal bunkers for storing different coal types, so that each sub-bunker can output the same variety of coal for the furnace when feeding coal. When the same variety of coal for the furnace burns in the furnace, the combustion efficiency can be ensured to be stable, thereby ensuring that the thermal power unit can meet the power generation requirements during new energy peak regulation. Description of the Drawings

[0013] Figure 1 is the front view of the present utility model;

[0014] Figure 2 is the top view of the present utility model;

[0015] Figure 3 is the side sectional view of the coal bunker in the present utility model;

[0016] Figure 4 is the three-dimensional view of the partition board in the present utility model.

[0017] Reference Signs: 1 - mounting frame, 2 - coal hopper, 3 - sub-bunker, 4 - discharge port, 5 - protruding part, 6 - partition board, 7 - fixing groove, 8 - lifting motor, 9 - lead screw, 10 - connecting plate, 11 - support rod, 12 - fixing hole, 13 - driven gear, 14 - driving motor, 15 - driving gear, 16 - anti-disengagement block, 17 - two-part coal bunker, 18 - three-part coal bunker. Detailed Embodiments

[0018] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0019] Figures 1 to 4 is an embodiment of the present utility model.

[0020] Embodiment 1

[0021] A separable raw coal bunker, comprising a mounting frame 1, inside which a plurality of coal bunkers are fixedly installed. The coal bunker includes a coal hopper 2 above and a plurality of inverted conical bins 3 below. An outlet 4 is provided at the bottom of the bin 3. The contact part between two adjacent bins 3 is a protruding part 5. Inside the coal bunker, a partition 6 for separating adjacent bins 3 is provided. The bottom of the partition 6 contacts the protruding part 5. A lifting mechanism for controlling the lifting of the partition 6 is arranged at the top of the coal bunker. The partition 6 can completely separate the bins 3 in the coal bunker, so that the same variety of coal fed into the furnace stored in each bin 3 will not be mixed during coal feeding. In this way, the furnace corresponding to each bin 3 can ensure that the combustion efficiency always remains stable, so that the generator set of the thermal power plant can adapt to new energy peak shaving. When it is not necessary to cooperate with new energy peak shaving, the partition 6 can be lifted by the lifting mechanism, which can increase the space of the coal bunker and store more coal fed into the furnace.

[0022] Embodiment 2

[0023] On the basis of Embodiment 1, the lifting mechanism includes a lifting motor 8, which is fixedly installed at the top of the coal bunker. A lead screw 9 is fixedly connected to the output shaft of the lifting motor 8. A connecting plate 10 is threadedly connected to the lead screw 9. One end of the connecting plate 10 is fixedly connected to the top of the partition 6. When the lifting motor 8 starts to work, the lead screw 9 will rotate. Since the partition 6 cannot rotate in the coal bunker, the connecting plate 10 can only move up and down on the lead screw 9. The movement of the connecting plate 10 can drive the partition 6 to move up and down in the coal bunker at the same time. Therefore, the lifting motor 8 can control the position of the partition 6 in the coal bunker.

[0024] Embodiment 3

[0025] On the basis of Embodiment 2, fixed holes 12 communicating with the inside are provided on both sides of the coal bunker. A support rod 11 is provided on the outer wall of the coal bunker. One end of the support rod 11 is matched with a fixed hole 12. A driven gear 13 is sleeved on the support rod 11. An internal thread is provided on the inner wall of the driven gear 13. The driven gear 13 is threadedly connected to the support rod 11. The side of the driven gear 13 is rotatably connected to the outer wall of the coal bunker. A driving motor 14 is fixedly installed at the top of the coal bunker. A driving gear 15 is fixedly connected to the output shaft of the driving motor 14. The driving gear 15 is in transmission cooperation with the driven gear 13. After the lifting motor 8 controls the partition 6 to move up, the driving motor 14 starts to work, which can make the driving gear 15 rotate, and then drive the driven gear 13 to rotate. Since the driven gear 13 cannot move on the coal bunker, the support rod 11 will enter the inside of the coal bunker under the action of the driven gear 13 and contact the bottom surface of the partition 6, so that the support rod 11 can support the partition 6 to prevent the lead screw 9 from slipping and the partition 6 from falling down.

[0026] Embodiment 4

[0027] On the basis of Embodiment 3, an anti - detachment block 16 is fixedly connected to the end of the support rod 11. The anti - detachment block 16 can prevent the support rod 11 from moving excessively and falling to the ground from the coal bunker.

[0028] Embodiment 5

[0029] On the basis of Embodiment 4, a fixing groove 7 is provided at the bottom of the partition plate 6, and the fixing groove 7 cooperates with the protruding part 5. By providing the fixing groove 7, the partition plate 6 can be prevented from moving down excessively beyond the protruding part 5, further ensuring that the coal for furnace feeding in the two sub - bins 3 does not mix.

[0030] Embodiment 6

[0031] On the basis of Embodiment 5, the coal bunker includes a two - part coal bunker 17 and a three - part coal bunker 18. The two - part coal bunker 17 includes two sub - bins 3, and the three - part coal bunker 18 includes three sub - bins 3. After the two - part coal bunker 17 is separated by the partition plate 6, two independent coal bunkers can be formed, and after the three - part coal bunker 18 is separated by the partition plate 6, three independent coal bunkers can be formed.

[0032] Working principle: During use, when a thermal power plant receives a requirement to cooperate with new energy for peak shaving, first operate the lifting mechanism to lower the partition plate 6 to completely separate each sub - bin 3 in the coal bunker to form multiple independent coal bunkers, and then store different varieties of coal for furnace feeding into each independent coal bunker respectively. In this way, the combustion efficiency in the furnace can be ensured to be stable after coal feeding. When there is no need to cooperate with new energy for peak shaving, operate the lifting mechanism to raise the partition plate 6, and then control the driving motor 14 to move the support rod 11 below the partition plate 6 to play an auxiliary role in supporting the partition plate 6. After the partition plate 6 is raised, the space of the coal bunker can be increased to store more coal for furnace feeding. Because even if different varieties of coal for furnace feeding are mixed and the combustion efficiency becomes unstable, it will not affect the normal power generation work of the thermal power plant.

[0033] Although the present invention has been described herein with reference to multiple illustrative embodiments of the present invention, it should be understood that those skilled in the art can design many other modifications and embodiments that will fall within the scope of the principles and spirit disclosed in this application. More specifically, within the scope of the drawings and claims disclosed in this application, various variations and improvements can be made to the components and / or layout of the subject combination layout. In addition to the variations and improvements made to the components and / or layout, other uses will also be obvious to those skilled in the art.

Claims

1. A divisible raw coal bunker, characterized in that: The invention comprises a mounting frame (1), wherein a plurality of coal bins are fixedly mounted inside the mounting frame (1), wherein the coal bin comprises a coal hopper (2) at the top and a plurality of inverted cone-shaped sub-bins (3) at the bottom, wherein a discharge port (4) is provided at the bottom of the sub-bins (3), wherein the contact portion between two adjacent sub-bins (3) is a protrusion (5), wherein a partition (6) is provided inside the coal bin for separating adjacent sub-bins (3), wherein the bottom of the partition (6) is in contact with the protrusion (5), and wherein a lifting mechanism for controlling the partition (6) is provided at the top of the coal bin.

2. The divisible raw coal bunker according to claim 1 is characterized by: The lifting mechanism comprises a lifting motor (8), the lifting motor (8) being fixedly mounted on the top of the coal bunker, a screw rod (9) being fixedly connected to the output shaft of the lifting motor (8), a connecting plate (10) being threadedly connected to the screw rod (9), and one end of the connecting plate (10) being fixedly connected to the top of the partition plate (6).

3. The divisible raw coal bunker according to claim 2 is characterized in that: Fixed holes (12) communicating with the interior are provided on both sides of the coal bunker. A support rod (11) is provided on the outer wall of the coal bunker. One end of the support rod (11) cooperates with one of the fixed holes (12). A driven gear (13) is sleeved on the support rod (11). An internal thread is provided on the inner wall of the driven gear (13). The driven gear (13) is threadedly connected to the support rod (11). The side of the driven gear (13) is rotatably connected to the outer wall of the coal bunker. A driving motor (14) is fixedly installed on the top of the coal bunker. A driving gear (15) is fixedly connected to the output shaft of the driving motor (14). The driving gear (15) is transmission-coordinated with the driven gear (13).

4. The divisible raw coal bunker according to claim 3 is characterized by: An anti-drop block (16) is fixedly connected to the end of the support rod (11).

5. The divisible raw coal bunker according to claim 1 is characterized in that: A fixing groove (7) is provided at the bottom of the partition (6), and the fixing groove (7) cooperates with the protrusion (5).

6. The divisible raw coal bunker according to claim 1 is characterized by: The coal bunker comprises a two-part coal bunker (17) and a three-part coal bunker (18), wherein the two-part coal bunker (17) comprises two part bunkers (3), and the three-part coal bunker (18) comprises three part bunkers (3).

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