CN211189843U - Buffer device for slurry fuel - Google Patents

Abstract

The utility model provides a buffer for slurry fuel belongs to slurry fuel production facility technical field, and it both has buffer function, can filter the debris in the slurry fuel again, still has the stirring and prevents deposiing the function, can satisfy slurry fuel's large capacity production needs. The buffer device for the slurry fuel comprises a buffer tank, wherein a filter sieve is arranged on one side of the top of the buffer tank, a screen is arranged at the bottom of the filter sieve, a stirrer vertically extending into the buffer tank is arranged on the other side of the top of the buffer tank, a side wall of the buffer tank, which is close to one side of the filter sieve, is arranged as an inclined side wall, the lower end part of the inclined side wall inclines towards the stirrer, and the filter sieve is positioned above the inclined side wall; the buffer device for the slurry fuel further comprises a feed inlet, a discharge outlet and a slag discharge port, wherein the feed inlet is communicated with the filter sieve, and the discharge outlet and the slag discharge port are arranged at the lower part of the buffer box.

Description

Buffer device for slurry fuel

Technical Field

The utility model belongs to the technical field of slurry fuel production facility, especially, relate to a buffer for slurry fuel.

Background

At present, the production flow of slurry fuel (such as coal water slurry) is generally divided into three stages: the first stage is a solid fuel (such as coal) crushing and conveying stage, the second stage is a grinding and pulping stage, and the third stage is a homogenizing and maturing stage. Wherein, a buffer device is usually required to be connected between the second stage and the third stage, and in the production of the coal water slurry, the buffer device is also called as a coal collecting box. For example: patent CN202642533U discloses a special coal collecting box for composite coal water slurry, which has both filtering and buffering functions. However, as the capacity of the slurry fuel production line gradually increases, the buffer space of the buffer device correspondingly increases, the residence time of the slurry fuel in the buffer device is relatively prolonged, and the slurry fuel is easy to precipitate, so that the existing buffer device only having the filtering and buffering functions cannot meet the production requirements. Therefore, how to provide a buffering device for slurry fuel with filtering, buffering and stirring functions to meet the requirement of high-capacity production of the slurry fuel is a technical problem which is urgently needed to be solved at present.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to foretell technical problem, provide a buffer for slurry fuel, it both has buffer function, can filter the debris in the slurry fuel again, still has the stirring and prevents the function of deposiing, can satisfy the large capacity production needs of slurry fuel.

In order to achieve the above object, the utility model discloses a technical scheme be:

the buffer device for the slurry fuel comprises a buffer tank, wherein a filter sieve is arranged on one side of the top of the buffer tank, a screen is arranged at the bottom of the filter sieve, a stirrer vertically extending into the buffer tank is arranged on the other side of the top of the buffer tank, the side wall of the buffer tank, which is close to one side of the filter sieve, is an inclined side wall, the lower end part of the inclined side wall inclines towards the stirrer, and the filter sieve is positioned above the inclined side wall; the buffer device for the slurry fuel further comprises a feed inlet, a discharge outlet and a slag discharge port, wherein the feed inlet is communicated with the filter sieve, and the discharge outlet and the slag discharge port are both arranged at the lower part of the buffer box.

Preferably, the included angle between the inclined side wall and the vertical surface is 30-45 degrees.

Preferably, the inclined side wall forms an angle of 30 ° with the vertical plane.

Preferably, the slag discharge port is arranged at the lower end of the inclined side wall.

Preferably, the discharge port is provided in the buffer tank side wall opposite to the inclined side wall.

Preferably, a vibration motor is installed at the top of the filter screen.

Preferably, the vibration motor is arranged close to the feed inlet.

Preferably, the agitator is an axial flow agitator.

Preferably, the filter screen is made of stainless steel.

Compared with the prior art, the utility model discloses an advantage and beneficial effect lie in:

1. the utility model provides a buffer for slurry fuel, utilize the filter sieve to filter slurry fuel in order to detach great debris granule etc., slurry fuel after filtering gets into the baffle-box and keeps in, the agitator that sets up can directly stir the slurry fuel that flows into the baffle-box, the slurry fuel that can furthest avoid just producing takes place to deposit, reduce the possibility that arouses the parking accident, this buffer for slurry fuel has filtration, buffering and stirring function concurrently, can satisfy the storage demand of slurry fuel output at least half an hour, the high-capacity production needs of slurry fuel have been satisfied, can realize continuous production;

2. the utility model provides a among the buffer unit for slurry fuel, its baffle-box is close to the slope lateral wall that filter sieve one side set up, can lead the slurry fuel that the filter sieve flows out to agitator one side fast, has reduced the dwell time of slurry fuel in no stirring space, furthest has utilized the working space of agitator, is favorable to improving the stirring effect;

3. the utility model provides a buffer for slurry fuel, its compact structure is convenient for maintain, and the handling capacity is big, and power energy consumption is little, is suitable for industrial production.

Drawings

Fig. 1 is a schematic structural diagram of a buffer device for slurry fuel according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an agitator according to an embodiment of the present invention;

in the above figures: 1. a buffer tank; 11. an inclined side wall; 2. filtering and screening; 21. screening a screen; 3. a stirrer; 31. an electric motor; 32. a speed reducer; 33. a coupling; 34. a drive shaft; 35. an upper-stage stirring blade; 36. a lower stirring paddle; 37. a first bearing; 38. a second bearing; 4. a feed inlet; 5. a discharge port; 6. a slag discharge port; 7. a vibration motor.

Detailed Description

The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", etc. indicate the positional relationship based on the positional relationship shown in fig. 1, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, the utility model relates to a buffer device for slurry fuel, which comprises a buffer tank 1, wherein a filter sieve 2 is arranged on one side of the top of the buffer tank 1, a screen 21 is arranged at the bottom of the filter sieve 2, a stirrer 3 vertically extending into the buffer tank 1 is arranged on the other side of the top of the buffer tank 1, a side wall of the buffer tank 1 close to one side of the filter sieve 2 is set as an inclined side wall 11, the lower end part of the inclined side wall 11 inclines towards the stirrer 3, and the filter sieve 2 is positioned above the inclined side wall 11; the buffer device for the slurry fuel further comprises a feed inlet 4, a discharge outlet 5 and a slag discharge port 6, wherein the feed inlet 4 is communicated with the filter sieve 2, and the discharge outlet 5 and the slag discharge port 6 are both arranged at the lower part of the buffer tank 1.

Above-mentioned buffer for slurry fuel, utilize filter sieve 2 to filter slurry fuel in order to detach great debris granule etc., slurry fuel after the filtration gets into buffer tank 1 and keeps in temporarily, the agitator 3 of setting can directly stir the slurry fuel that flows into buffer tank 1, the slurry fuel that avoids just producing that can furthest takes place to deposit, reduce the possibility that arouses the parking accident, this buffer for slurry fuel has concurrently and filters, buffering and stirring function, can satisfy the storage demand of slurry fuel half hour output at least, slurry fuel's high-capacity production needs have been satisfied, can realize continuous production. Moreover, in the above-mentioned buffer device for slurry fuel, the inclined side wall 11 that the buffer tank 1 is close to the side of the filter sieve 2 can guide the slurry fuel flowing out of the filter sieve 2 to the side of the stirrer 3 quickly, thereby reducing the retention time of the slurry fuel in the stirring-free space, utilizing the working space of the stirrer 3 to the maximum extent and being beneficial to improving the stirring effect. In addition, the buffering device for the slurry fuel has the advantages of compact structure, convenience in maintenance, large treatment capacity and low power consumption, and is suitable for industrial production.

In order to make the inclined side wall 11 have a good flow guiding effect, as shown in fig. 1, an included angle α between the inclined side wall 11 and the vertical surface is 30 to 45 degrees.

Further, as shown in fig. 1, the slag discharge port 6 is provided at a lower end of the inclined side wall 11. Because the side close to the inclined side wall 11 is the non-stirring space, the sediment generated on the inclined side wall 11 can fall to the lower end of the inclined side wall 11 along the inclined side wall 11, and in addition, the lower end of the inclined side wall 11 is positioned at the stirring edge of the stirrer 3, so that the lower end of the inclined side wall 11 is a position where the sediment is relatively easy to accumulate, and the slag discharge port 6 is arranged at the lower end of the inclined side wall 11, thereby being more convenient for cleaning. In order to avoid the accumulated precipitates from flowing out of the discharge port 5, as shown in fig. 1, the discharge port 5 is provided at a side wall of the buffer tank 1 opposite to the inclined side wall 11.

In order to prevent the filter sieve 2 from being clogged, as shown in fig. 1, a vibration motor 7 is installed at the top of the filter sieve 2. The vibrating motor 7 can drive the filter sieve 2 to vibrate together when working, can prevent larger sundry particles from blocking the screen 21 of the filter sieve 2, and is beneficial to improving the filtering speed of the filter sieve 2. Preferably, in the present embodiment, the vibration motor 7 is erected near the feeding hole 4 through a bracket, so that the feeding hole 4 has a strong vibration amplitude.

For the filter sieve 2, it should be noted that the filter sieve 2 used in this embodiment is made of stainless steel, which is not easily damaged, has a long service life, and is convenient for maintenance, and it can be understood that those skilled in the art may also use filter sieves 2 made of other materials. When the filtering sieve is used, sundry particles filtered by the filtering sieve 2 need to be cleaned manually at intervals, and the interval time can be determined according to the quantity of the sundry particles and is generally about 10 days.

For the stirrer 3, as shown in fig. 2, the stirrer 3 adopted in this embodiment is specifically an axial flow stirrer, and includes a motor 31, a speed reducer 32, a coupler 33, and a transmission shaft 34, which are sequentially connected from top to bottom, the transmission shaft 34 vertically extends into the buffer tank 1 from one side of the top of the buffer tank 1, a higher-level stirring blade 35 and a lower-level stirring blade 36 are arranged on the periphery of the transmission shaft 34, the higher-level stirring blade 35 and the lower-level stirring blade 36 are approximately uniform-pitch curved surfaces, and slurry fuel at the upper part and the lower part of the buffer tank 1 can be rapidly rotated on the premise of not increasing power; the axial upper end and the axial lower end of the transmission shaft 34 are fixed by a first bearing 37 and a second bearing 38, respectively, to ensure transmission accuracy. The axial flow type stirrer adopted in the embodiment has the characteristics of small power, simple structure, convenience in maintenance, good stirring effect and the like. It should be noted that the axial flow type stirrer belongs to the prior art, and the structure thereof is well known to those skilled in the art, and is not limited to the structure adopted in the present embodiment, and those skilled in the art may adopt other structures of the axial flow type stirrer. It is to be understood that the stirrer 3 of the present invention is not limited to an axial flow stirrer, and those skilled in the art may adopt other types of stirrers.

The process of treating the slurry fuel by using the buffering device for the slurry fuel comprises the following steps: the slurry fuel enters the filter sieve 2 from the feeding hole 4, flows out from the bottom of the filter sieve 2 after being filtered by the screen 21, then falls onto the inclined side wall 11, the inclined side wall 11 guides the slurry fuel to the vicinity of the stirrer 3, the stirrer 3 stirs the slurry fuel to prevent sedimentation, and finally the slurry fuel flows out from the discharging hole 5. It should be noted that, when the slurry fuel enters the feed port 4, the vibration motor 7 may be turned on to drive the filter sieve 2 to vibrate together, so as to increase the filtering speed and prevent the filter sieve 2 from being blocked. It should be noted that the sediment accumulated in the buffer tank 1 can be cleaned regularly through the slag discharge port 6, and the filter sieve 2 also needs to be cleaned regularly. In addition, when the slurry fuel buffer device is used, the stirrer 3 may be turned on or off at regular intervals or may be turned on at all times.

Claims (9)

1. The buffer device for the slurry fuel is characterized in that: the stirrer comprises a buffer tank, wherein a filter sieve is arranged on one side of the top of the buffer tank, a screen is arranged at the bottom of the filter sieve, a stirrer vertically extending into the buffer tank is arranged on the other side of the top of the buffer tank, the side wall of the buffer tank, which is close to one side of the filter sieve, is an inclined side wall, the lower end part of the inclined side wall inclines towards the stirrer, and the filter sieve is positioned above the inclined side wall; the buffer device for the slurry fuel further comprises a feed inlet, a discharge outlet and a slag discharge port, wherein the feed inlet is communicated with the filter sieve, and the discharge outlet and the slag discharge port are both arranged at the lower part of the buffer box.

2. A slurry fuel buffering device as defined in claim 1, wherein: the included angle between the inclined side wall and the vertical surface is 30-45 degrees.

3. A slurry fuel buffering device as defined in claim 2, wherein: the included angle between the inclined side wall and the vertical surface is 30 degrees.

4. A slurry fuel buffering device as defined in claim 1, wherein: the slag discharge port is arranged at the lower end of the inclined side wall.

5. A slurry fuel buffering device as claimed in claim 4, wherein: the discharge port is arranged on the side wall of the buffer box opposite to the inclined side wall.

6. A slurry fuel buffering device as defined in claim 1, wherein: and a vibration motor is arranged at the top of the filter screen.

7. A slurry fuel buffering device as defined in claim 6, wherein: the vibrating motor is close to the feeding hole.

8. A slurry fuel buffering device as defined in claim 1, wherein: the stirrer is an axial flow stirrer.

9. A slurry fuel buffering device as defined in claim 1, wherein: the filter screen is made of stainless steel.

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