CN210656804U

CN210656804U - Plate-type hot air distribution device for improving burning strength of biofuel device

Info

Publication number: CN210656804U
Application number: CN201921226921.4U
Authority: CN
Inventors: 赵刚; 刘恩光; 王树平
Original assignee: Shandong Shida Shenghua Chemical Group Co Ltd
Current assignee: Shinghwa Advanced Material Group Co Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-06-02
Anticipated expiration: 2029-07-31

Abstract

The utility model relates to a improve burning intensity's biofuel device with board-like hot-blast distributor. The technical scheme is as follows: the catalyst emergency fluidization device is characterized in that a hot air inlet pipe is arranged at the bottom of the outer cavity, a hot air primary distributor is arranged at the upper end of the hot air inlet pipe, a hot air secondary distributor is arranged above the hot air primary distributor, a catalyst emergency fluidization system is installed on the outer cavity above the hot air secondary distributor, a catalyst inlet is arranged at the upper part of the outer cavity, and a catalyst distributor is arranged at the catalyst inlet. The beneficial effects are that: firstly, the primary hot air distributor is changed into a bell mouth shape with a small upper part and a large lower part, so that the pressure drop of the system is reduced; and secondly, a hot air secondary distribution plate is changed, the hot air secondary distribution effect is improved, a platform is provided for high-strength scorching, the pressure drop of hot air passing through the secondary distribution is reduced, the service life of the component is greatly prolonged, and the purposes of high-strength scorching and service life prolonging are finally achieved.

Description

Plate-type hot air distribution device for improving burning strength of biofuel device

Technical Field

The utility model relates to a biofuel device in biological raw materials processing field, in particular to improve burnt intensity's plate-type hot-blast distributor for biofuel device.

Background

The biofuel device is a complete set of process equipment for converting biological raw materials into products such as mixed aromatic hydrocarbon, fuel oil and the like through a catalytic cracking process engineering, the profit of a single set of raw oil processing device is greatly squeezed along with the rapid installation of a large-scale integrated raw oil processing device, enterprises have to realize the processing by processing low-cost raw materials and improving the processing capacity in order to still obtain processing profit from the processing, the low-cost raw materials are accompanied with the problems of raw oil quality deviation, and the residual carbon content and the sulfur content are higher.

The key index for processing raw oil by a biofuel unit is the regenerated carbon content of the catalyst, which directly affects the product yield and the product conversion tendency.

Before a high-strength coking system is not adopted, the processing amount of raw oil is 45 tons/hour, the residual carbon content of a regenerated catalyst is always maintained to be about 0.03, the yield of crude mixed aromatic hydrocarbon is about 45 percent, the yield of fuel oil is about 20 percent, and the yield of waste gas is about 4.5 percent.

Disclosure of Invention

The utility model aims at providing a plate-type hot air distribution device for a biofuel device for improving the burning intensity aiming at the defects in the prior art.

The utility model provides an improve biofuel device of strength of burning and use board-like hot-air distributor, its technical scheme is: comprises a first catalyst inlet (1), a second catalyst inlet (2), a first catalyst emergency fluidization system (3), a second catalyst emergency fluidization system (4), a first catalyst distributor (5), a second catalyst distributor (6), a hot air primary distributor (7), a hot air secondary distributor (8), a hot air inlet pipe (10), a support (11) and an outer cavity (12), wherein the outer cavity (12) is fixed through the support (11), the bottom of the outer cavity (12) is provided with the hot air inlet pipe (10), the upper end of the hot air inlet pipe (10) is provided with the hot air primary distributor (7), the hot air secondary distributor (8) is arranged above the hot air primary distributor (7), and the outer cavity above the hot air secondary distributor (8) is provided with the first catalyst emergency fluidization system (3) and the second catalyst emergency fluidization system (4), the upper part of the outer cavity (12) is provided with a first catalyst inlet (1) and a second catalyst inlet (2), the first catalyst inlet (1) is provided with a first catalyst distributor (5), and the second catalyst inlet (2) is provided with a second catalyst distributor (6).

Preferably, the end of the first catalyst distributor (5) is an oval structure, and a plurality of catalyst distributor flow openings (13) are uniformly distributed on the main body of the first catalyst distributor (5), and the catalyst distributor flow openings (13) are rectangular structures.

Preferably, the end of the second catalyst distributor (6) is an oval structure, and a plurality of catalyst distributor flow openings (13) are uniformly distributed on the main body of the second catalyst distributor (6), and the catalyst distributor flow openings (13) are rectangular structures.

Preferably, the hot air primary distributor (7) is made of stainless steel and is in a bell mouth shape with a small upper part and a large lower part.

Preferably, the top end of the hot air primary distributor (7) is sealed, the lower part of the hot air primary distributor is of an open structure, and the hot air primary distributor (7) and the hot air inlet pipe (10) are fixed through a rib plate to avoid vibration.

Preferably, the hot air secondary distributor (8) is of a plate structure and is provided with a plurality of circulation holes (8.1) with the same size, and the circulation holes (8.1) are arranged in a manner of forming an included angle of 10 degrees with a vertical axis.

Preferably, the axis of the circulation hole (8.1) and the outer shape of the outer cavity formed by the position of the circulation hole are arranged in a tangent line, so that the hot air sprayed out of the circulation hole (8.1) is ensured to rise in a spiral manner.

Preferably, the lower part of the hot air secondary distributor (8) is provided with an anti-scouring lining (9), and the anti-scouring lining (9) is attached to the inner wall of the outer cavity.

The utility model has the advantages that: firstly, the shape and the size of the hot air primary distributor are changed from the traditional barrel shape to a bell mouth shape with a small upper part and a large lower part, and the hot air primary distributor with the changed size and shape reduces the system pressure drop; secondly, the tubular structure design of the traditional hot air secondary distributor is changed into a hot air secondary distribution plate, so that the secondary distribution effect of hot air is improved, a platform is provided for high-strength scorching, the pressure drop of hot air passing through secondary distribution is reduced, and the service life of the component is greatly prolonged; and thirdly, a catalyst distributor is added when the catalyst enters the coking chamber, so that the catalyst is changed from a stacking state to an evenly distributed state when entering the coking chamber, and the catalyst is more beneficial to evenly contacting with secondary hot air, thereby finally achieving the purposes of high-strength coking and prolonging the service life.

Drawings

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic diagram of the structure of a catalyst distributor;

FIG. 3 is a schematic view of the structure of a flow-through hole;

FIG. 4 is a top view of a flow aperture;

in the upper diagram: the device comprises a first catalyst inlet 1, a second catalyst inlet 2, a first catalyst emergency fluidization system 3, a second catalyst emergency fluidization system 4, a first catalyst distributor 5, a second catalyst distributor 6, a hot air primary distributor 7, a hot air secondary distributor 8, an anti-scouring lining 9, a hot air inlet pipe 10, a support 11, an outer cavity 12, a catalyst distributor flow opening 13 and a flow opening 8.1.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Embodiment 1, referring to fig. 1, the utility model provides a improve board-like hot-air distribution device for biofuel device of burning intensity, its technical scheme is: the catalyst emergency fluidization device comprises a first catalyst inlet 1, a second catalyst inlet 2, a first catalyst emergency fluidization system 3, a second catalyst emergency fluidization system 4, a first catalyst distributor 5, a second catalyst distributor 6, a hot air primary distributor 7, a hot air secondary distributor 8, a hot air inlet pipe 10, a support 11 and an outer cavity 12, wherein the outer cavity 12 is fixed through the support 11, the hot air inlet pipe 10 is arranged at the bottom of the outer cavity 12, the hot air primary distributor 7 is arranged at the upper end of the hot air inlet pipe 10, the hot air secondary distributor 8 is arranged above the hot air primary distributor 7, the first catalyst emergency fluidization system 3 and the second catalyst emergency fluidization system 4 are installed on the outer cavity above the hot air secondary distributor 8, the first catalyst inlet 1 and the second catalyst inlet 2 are arranged at the upper part of the outer cavity 12, and the first catalyst distributor 5 is arranged at the first catalyst inlet 1, a second catalyst distributor 6 is provided at the second catalyst inlet 2.

Referring to fig. 2, the end of the first catalyst distributor 5 has an oval structure, and a plurality of catalyst distributor flow openings 13 are uniformly distributed on the main body of the first catalyst distributor 5, and the catalyst distributor flow openings 13 have a rectangular structure.

Referring to fig. 2, the end of the second catalyst distributor 6 has an oval structure, and a plurality of catalyst distributor flow openings 13 are uniformly distributed on the main body of the second catalyst distributor 6, and the catalyst distributor flow openings 13 have a rectangular structure.

Preferably, the primary hot air distributor 7 is made of stainless steel and has a bell mouth shape with a small top and a large bottom.

Preferably, the top end of the primary hot air distributor 7 is sealed, the lower part of the primary hot air distributor is an open structure, and the primary hot air distributor 7 and the hot air inlet pipe 10 are fixed through a rib plate to avoid vibration.

Referring to the attached drawing 3, the hot air secondary distributor 8 is of a plate type structure and is provided with a plurality of circulation holes 8.1 with the same size, so that the uniformity of hot air secondary distribution can be guaranteed, the circulation holes 8.1 are arranged in a mode of forming an included angle of 10 degrees with a vertical axis, the axis of the circulation holes 8.1 and the appearance of an outer cavity formed by the positions of the circulation holes are arranged in a tangent line mode, and the hot air sprayed out of the circulation holes 8.1 is guaranteed to rise in a spiral mode.

In addition, the lower part of the hot air secondary distributor 8 is provided with an anti-scouring lining 9, and the anti-scouring lining 9 is attached to the inner wall of the outer cavity so as to reduce the abrasion of hot air sprayed to the hot air secondary distributor and the scouring of the catalyst.

The utility model discloses the during operation, hot compressed air about 200 ℃ gets into hot-blast distributor 7 from hot-blast inlet tube 10, hot-blast change that carries out the flow direction under the effect of equipment body after distributor 7 steps down, change the backward hot-blast through hot-blast secondary distributor 8 that makes progress of flow, the hot-blast direction of secondary, 8 change hot-blast direction again, make hot-blast rotatory upwards along equipment the central axis, the catalyst that carries a large amount of carbon residue passes through the pipe-line transportation and gets into first catalyst entry 1 and second catalyst entry 2, through first catalyst distributor 5, second catalyst distributor 6 carries out in the evenly distributed back downward entering ectosome, also be exactly the burning room, the catalyst downstream that gets into the burning room, carry out abundant contact with rotatory ascending hot-air. Under the action of the hot air in rotary motion, the motion state of the catalyst is changed from downward motion of a free falling body into upward motion of rotation, and the coke carried on the catalyst body is fully burnt in the process of upward motion of the catalyst carried by hot air in a rotating way.

After improvement, the processing amount of raw oil processing is increased to 52 tons/hour, the residual carbon content of the regenerated catalyst is reduced to about 0.02, after the regenerated fixed carbon of the regenerated catalyst is reduced, the product distribution tendency is also greatly changed, the yield of crude mixed aromatic hydrocarbon with high added value of the product is increased to about 48 percent, the yield of fuel oil with low added value of the product is reduced to about 18 percent, and the yield of waste gas without accessory value of the product is reduced to about 3.5 percent.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.

Claims

1. A plate-type hot air distribution device for improving the burning intensity of a biofuel device is characterized in that: comprises a first catalyst inlet (1), a second catalyst inlet (2), a first catalyst emergency fluidization system (3), a second catalyst emergency fluidization system (4), a first catalyst distributor (5), a second catalyst distributor (6), a hot air primary distributor (7), a hot air secondary distributor (8), a hot air inlet pipe (10), a support (11) and an outer cavity (12), wherein the outer cavity (12) is fixed through the support (11), the bottom of the outer cavity (12) is provided with the hot air inlet pipe (10), the upper end of the hot air inlet pipe (10) is provided with the hot air primary distributor (7), the hot air secondary distributor (8) is arranged above the hot air primary distributor (7), and the outer cavity above the hot air secondary distributor (8) is provided with the first catalyst emergency fluidization system (3) and the second catalyst emergency fluidization system (4), the upper part of the outer cavity (12) is provided with a first catalyst inlet (1) and a second catalyst inlet (2), the first catalyst inlet (1) is provided with a first catalyst distributor (5), and the second catalyst inlet (2) is provided with a second catalyst distributor (6).

2. The plate-type hot air distribution device for a biofuel device for improving the burning intensity as set forth in claim 1, wherein: the tail end of the first catalyst distributor (5) is of an oval structure, a plurality of catalyst distributor circulation ports (13) are uniformly distributed on the main body of the first catalyst distributor (5), and the catalyst distributor circulation ports (13) are of a rectangular structure.

3. The plate-type hot air distribution device for a biofuel device for improving the burning intensity as set forth in claim 1, wherein: the tail end of the second catalyst distributor (6) is of an oval structure, a plurality of catalyst distributor circulation ports (13) are uniformly distributed on the main body of the second catalyst distributor (6), and the catalyst distributor circulation ports (13) are of a rectangular structure.

4. The plate-type hot air distribution device for a biofuel device for improving the burning intensity as set forth in claim 1, wherein: the hot air primary distributor (7) is made of stainless steel and is in a bell mouth shape with a small upper part and a big lower part.

5. The plate-type hot air distribution device for improving the burning intensity of the biofuel device as set forth in claim 4, wherein: the top end of the hot air primary distributor (7) is sealed, the lower part of the hot air primary distributor is of an open structure, and the hot air primary distributor (7) and the hot air inlet pipe (10) are fixed through a rib plate to avoid vibration.

6. The plate-type hot air distribution device for a biofuel device for improving the burning intensity as set forth in claim 1, wherein: the hot air secondary distributor (8) is of a plate type structure and is provided with a plurality of circulation holes (8.1) with the same size, and the circulation holes (8.1) are arranged in a form of 10-degree included angles with the vertical axis.

7. The plate-type hot air distribution device for a biofuel device for improving the burning intensity as set forth in claim 6, wherein: the outer cavity formed by the axis of the circulation hole (8.1) and the position of the circulation hole is tangentially arranged to ensure that the hot air sprayed out of the circulation hole (8.1) rises in a spiral form.

8. The plate-type hot air distribution device for a biofuel device for improving the burning intensity as set forth in claim 1, wherein: the lower part of the hot air secondary distributor (8) is provided with an anti-scouring lining (9), and the anti-scouring lining (9) is attached to the inner wall of the outer cavity.