CN112708476A

CN112708476A - Biomass pyrolysis gas separation cooling circulation treatment equipment

Info

Publication number: CN112708476A
Application number: CN202011516920.0A
Authority: CN
Inventors: 张伟
Original assignee: Changsha Daoxiang Agricultural Technology Co ltd
Current assignee: Changsha Daoxiang Agricultural Technology Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-04-27

Abstract

The invention discloses a biomass pyrolysis gas separation cooling circulation treatment device, which comprises: a cooling separation device and a cooling adsorption medium regeneration device; the cooling and separating device comprises: a cooling housing having a cooling air inlet at one side and a cooling air outlet at the other side; the cooling shell is sequentially provided with a cooling adsorption medium hopper, a cooling adsorption medium bulk cargo mechanism, a partition plate, a cooling adsorption medium discharge mechanism and a cooling water outlet from top to bottom; a plurality of partition plates are arranged at intervals to divide the interior of the cooling shell into continuous W channels; the cooling adsorption medium regeneration device includes: frame, mesh conveyer belt are equipped with on the mesh conveyer belt in proper order and spray wiper mechanism, negative pressure adsorption apparatus structure, and negative pressure adsorption apparatus constructs and includes: a negative pressure shell which is positioned at the bottom of the mesh conveyor belt and is in sliding contact with the mesh conveyor belt, and a negative pressure pump. The invention aims to cool the fuel gas and separate the moisture from the fuel gas by the device, and to regenerate and reuse the cooling adsorption medium.

Description

Biomass pyrolysis gas separation cooling circulation treatment equipment

Technical Field

The invention relates to the technical field of biomass fuel production, in particular to biomass pyrolysis fuel gas separation, cooling and circulation treatment equipment.

Background

The biomass such as rice hulls, straws and the like can generate combustible biomass pyrolysis gas through a certain pyrolysis process, wherein the combustible gas contains a large amount of substances such as dust, particles, water vapor, tar and the like. In the prior art, solid dust and particulate matters in gas are captured through a cyclone separator, moisture is separated through a water-gas separator, and then the gas is cooled to a temperature convenient for subsequent equipment treatment through a cooling tower, however, a large amount of cooling water resources are needed to be used in the existing cooling tower, waste is caused on one hand, and on the other hand, the treatment of the gas containing tar is not ideal, so that the corresponding improvement on the water-gas separation and cooling equipment is necessary.

Disclosure of Invention

In view of the above, the present invention provides a biomass pyrolysis gas separation and cooling circulation processing apparatus, which is beneficial to cooling the gas and simultaneously separating moisture from the gas, and regenerating and reusing a cooling and adsorbing medium.

In order to achieve the above object, the present invention provides a biomass pyrolysis gas separation cooling circulation treatment apparatus, comprising: a cooling separation device and a cooling adsorption medium regeneration device;

the cooling and separating device comprises: a cooling housing having a cooling air inlet at one side and a cooling air outlet at the other side; the cooling shell is sequentially provided with a cooling adsorption medium hopper, a cooling adsorption medium bulk cargo mechanism, a partition plate, a cooling adsorption medium discharge mechanism and a cooling water outlet from top to bottom; the plurality of the partition plates are vertically arranged at intervals so as to divide the interior of the cooling shell from the cooling air inlet to the cooling air outlet into continuous W channels;

the cooling adsorption medium regeneration device includes: frame, transmission frame locate on it and only can pass through the mesh conveyer belt of gas, liquid medium, mesh conveyer belt one end is equipped with the feed inlet, and the other end is equipped with the discharge gate, and just is equipped with in proper order along feed inlet to discharge gate department and sprays wiper mechanism, negative pressure adsorption apparatus structure, negative pressure adsorption apparatus constructs and includes: the negative pressure shell is positioned at the bottom of the mesh conveyor belt and is in sliding contact with the mesh conveyor belt, and the negative pressure pump is communicated with the negative pressure shell through a pipeline; be equipped with the holding tank that is used for holding cooling adsorption medium on the mesh conveyer belt, the feed inlet is received and is come from cooling adsorption medium discharge mechanism exhaust cooling adsorption medium.

Further, the adsorption medium bulk cooling mechanism comprises: the horizontal bulk cargo gyration casing that sets up of axis and rotate the bulk cargo cylinder that sets up in it, bulk cargo gyration casing upper end communicate in cooling adsorption medium hopper, lower extreme intercommunication in cooling casing upper end, on bulk cargo cylinder both ends rotating turret located bulk cargo gyration casing, its tip passed through motor drive, still was equipped with the radial outside open-ended of orientation on the outer circumference of bulk cargo cylinder and holds the silo, is arranged in inserting the cooling adsorption medium in the cooling adsorption medium hopper when holding the silo and rotate to the opening up, is arranged in cooling adsorption medium scattered to cooling casing top cavity when rotating to the opening down.

Furthermore, a material baffle plate is arranged in the material containing groove corresponding to the upper end of the partition plate.

Furthermore, bulk cargo teeth are arranged in the W channel in a staggered mode.

Further, the cooling adsorption medium discharge mechanism includes: the feeding port of the spiral conveyer is lower and is positioned below the inner part of the cooling shell, and the discharging port is positioned outside the cooling shell; the bottom of one side of the spiral conveyor close to the feed inlet is provided with a water leakage hole.

Furthermore, the cooling air outlet is provided with an air outlet pipe, the cooling shell is provided with a push plate in an inserted mode, and the push plate is provided with a filter screen for plugging the inlet of the air outlet pipe.

Further, the cooling adsorption medium is a mixture of sand and activated carbon particles.

Further, the spraying and cleaning mechanism is a spraying head positioned above the mesh conveyor belt and communicated with the pressure cleaning source through a pipeline.

Furthermore, a mesh material baffle plate which is abutted is arranged above the mesh conveying belt corresponding to the position of the negative pressure shell.

Furthermore, the mesh conveyor belt forms a transmission loop through a transmission roller which is arranged on the rack and rotates around the transverse shaft, and the transmission roller is in transmission connection through a transmission motor.

Compared with the prior art, the invention has the beneficial effects that: the device is beneficial to separating moisture from the fuel gas while cooling the fuel gas, and regenerating and reusing the cooling adsorption medium. The pyrolysis gas moves forwards along the continuous W channel, the cooling and adsorption medium dispersing mechanism disperses the particles with cooling and adsorption functions downwards from the upper end of the channel, and the cooling and adsorption medium removes moisture, heat and tar substances in the gas; the excessive moisture and tar are finally discharged through the cooling water outlet, and the cooling adsorption medium discharging mechanism discharges the falling cooling adsorption medium out of the shell and can also recycle the cooling adsorption medium; the gas is cooled and purified, and the purified gas is discharged from the cooling gas outlet, so that compared with the combination of the traditional water-gas separator and a cooling tower, the device has the advantages of high integration level, high efficiency and relatively thorough purification; cooling adsorption medium gets into to the mesh conveyer belt from the feed inlet on, fill up in the holding tank, along with the transmission, when spraying wiper mechanism, the cleaner can wash impurity such as tar dust on the cooling adsorption medium and get rid of, when negative pressure suction mechanism again, under the effect of negative pressure casing, can be with the cooling adsorption medium in the holding tank water, powerful such as cleaner effectively inhale completely gets rid of, thereby obtain totally, clear cooling adsorption medium, obtain purifying, retrieve and recycle, after discharging from discharge gate department, can send to cooling adsorption medium hopper through the feeder once more, it is multiplexing, form one set of recycling system, the processing of the pyrolysis gas of being convenient for.

1. The bulk cargo mechanism in the invention can realize bulk cargo and effectively prevent fuel gas from overflowing from the cooling adsorption medium hopper.

2. According to the invention, the W channel is provided with the bulk cargo teeth in a staggered manner, so that the falling cooling adsorption medium is fully broken up again to form a powder curtain shape, the gas is conveniently and fully contacted, and the purification is more thorough.

3. The filter screen can effectively prevent the cooling adsorption medium from being discharged from the air outlet pipe, so that the separation effect is achieved, and meanwhile, an operator can quickly replace the filter screen through the plugging push plate.

4. The invention is beneficial to wide popularization and use in factories.

Drawings

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

FIG. 1 is a schematic front view of an embodiment of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B according to the present invention;

FIG. 4 is a schematic cross-sectional view taken along line C-C of FIG. 1 according to the present invention;

FIG. 5 is a schematic cross-sectional view of the structure of the section D-D shown in FIG. 4 according to the present invention.

In the figure: 1. a cooling separation device; 101. cooling the air inlet; 102. cooling the air outlet; 103. cooling the adsorption medium hopper; 104. a cooling water outlet; 11. cooling the housing; 12. a partition plate; 13. a bulk material rotary shell; 14. a bulk material roller; 141. a material containing groove; 142. a striker plate; 15. a screw conveyor; 16. a water leakage hole; 17. an air outlet pipe; 18. pushing the plate; 19. a filter screen; 2. cooling the adsorption medium regeneration device; 21. a frame; 22. a mesh conveyor belt; 23. a spray cleaning mechanism; 24. a negative pressure housing; 25. a negative pressure pump; 26. a mesh striker plate; 27. a driving roller; 28. and a transmission motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, an embodiment of the present invention provides a biomass pyrolysis gas separation cooling circulation processing apparatus, including: a cooling separation device 1 and a cooling adsorption medium regeneration device 2;

the cooling and separating apparatus 1 includes: a cooling casing 11 having a cooling air inlet 101 at one side thereof and a cooling air outlet 102 at the other side thereof; the cooling shell 11 is provided with a cooling adsorption medium hopper 103, a cooling adsorption medium bulk cargo mechanism, a partition plate 12, a cooling adsorption medium discharge mechanism and a cooling water outlet 104 in sequence from top to bottom; a plurality of the partition plates 12 are vertically arranged at intervals to divide the interior of the cooling housing 11 into continuous W passages from the cooling air inlet 101 to the cooling air outlet 102;

in the use process, pyrolysis gas enters from the cooling air inlet 101 and moves forwards along the continuous W channel, meanwhile, the cooling and adsorbing medium dispersing mechanism disperses particulate matters (such as sand, activated carbon or a mixture of the sand and the activated carbon) with cooling and adsorbing functions downwards from the upper end of the channel, wherein a large amount of heat and tar mist in the gas are taken away by utilizing the characteristics of quick heat absorption and quick heat dissipation of the sand, and a large amount of moisture, tar and other substances in the gas are taken away by utilizing the adsorption effect of the activated carbon, and the moisture, the heat and tar substances in the gas are removed by the cooling and adsorbing medium; the excessive moisture and tar are finally discharged through the cooling water outlet 104, and the cooling adsorption medium discharging mechanism discharges the falling cooling adsorption medium out of the shell, and can also recycle the cooling adsorption medium; the gas is cooled and purified, the purified gas is discharged from the cooling gas outlet 102, and compared with the combination of a traditional water-gas separator and a cooling tower, the device has the advantages of high integration level, high efficiency, relatively thorough purification and convenience for subsequent treatment of the gas.

The cooling adsorption medium regeneration device 2 includes: frame 21, transmission frame locate on it and only can pass through the mesh conveyer belt 22 of gas, liquid medium, mesh conveyer belt 22 one end is equipped with the feed inlet, and the other end is equipped with the discharge gate, and just is equipped with along feed inlet to discharge gate department in proper order and sprays wiper mechanism 23, negative pressure adsorption apparatus structure, negative pressure adsorption apparatus constructs and includes: a negative pressure housing 24 which is positioned at the bottom of the mesh conveyor belt 22 and is in sliding contact with the mesh conveyor belt, and a negative pressure pump 25 which is communicated with the negative pressure housing 24 through a pipeline; be equipped with the holding tank that is used for holding cooling adsorption medium on mesh conveyer belt 22, the feed inlet is received and is come from cooling adsorption medium discharge mechanism exhaust cooling adsorption medium.

In the use, cooling adsorption medium gets into to mesh conveyer belt 22 from the feed inlet on, fill up 2~5cm thick one deck in the holding tank, along with the transmission, when spraying wiper mechanism 23, the cleaner can wash impurity such as tar dust on the cooling adsorption medium and get rid of, when negative pressure adsorption mechanism again, under negative pressure casing 24's effect, can be with the cooling adsorption medium in the holding tank water, the effective suction of powerful such as cleaner is got rid of, thereby obtain clean, clear cooling adsorption medium, obtain purifying, retrieve and recycle, after discharging from discharge gate department, can send to cooling adsorption medium hopper 103 through the feeder once more, multiplex, form one set of recycling system, the processing of the pyrolysis gas of being convenient for.

In this embodiment, optionally, the cooling and adsorbing medium bulk material mechanism includes: the bulk material rotary shell 13 is transversely arranged on the axis, the bulk material roller 14 is rotatably arranged in the bulk material rotary shell 13, the upper end of the bulk material rotary shell 13 is communicated with the cooling adsorption medium hopper 103, the lower end of the bulk material rotary shell is communicated with the upper end of the cooling shell 11, two ends of the bulk material roller 14 are rotatably erected on the bulk material rotary shell 13, one end of the bulk material roller is driven by a motor, a material accommodating groove 141 with an opening facing radially outwards is further arranged on the outer circumference of the bulk material roller 14, the cross section of the material accommodating groove 141 is arc-shaped, a plurality of material accommodating grooves can be uniformly distributed on the outer circumferential surface of the bulk material roller 14 around the axis of the bulk material roller, when the material accommodating grooves 141 rotate to the opening facing upwards, the material accommodating grooves are used for receiving the cooling adsorption. The bulk cargo mechanism of this structure can be when realizing the bulk cargo, and effective separation gas overflows from cooling adsorption medium hopper 103.

In this embodiment, optionally, a material baffle 142 is disposed in the material accommodating groove 141 corresponding to the upper end position of the partition 12. The baffle 142 provides a good barrier against air flow over the baffle 12 from the receptacle 141.

In this embodiment, optionally, bulk material teeth are staggered in the W channel. The falling cooling adsorption medium is fully broken up again to form a powder curtain shape, so that the gas is fully contacted, and the purification is more thorough.

In this embodiment, optionally, the cooled adsorbing medium discharging mechanism includes: the feeding port of the obliquely arranged screw conveyor 15 is lower and is positioned below the inner part of the cooling shell 11, and the discharging port is positioned outside the cooling shell 11; the bottom of one side of the screw conveyor 15 close to the feeding hole is provided with a water leakage hole 16.

In this embodiment, optionally, the outlet pipe 17 is disposed at the cooling outlet 102, an inlet of the outlet pipe is directed downward to prevent the cooling adsorption medium from entering, a push plate 18 is inserted into the cooling housing 11, and a filter screen 19 for blocking the inlet of the outlet pipe 17 is disposed on the push plate 18. The filter screen 19 can effectively prevent the cooling adsorption medium from being discharged from the air outlet pipe 17, and plays a role in separation, however, an operator can realize quick replacement of the filter screen 19 through the plugging push plate 18.

In this embodiment, optionally, the cooling adsorption medium is a mixture of sand and activated carbon particles.

In this embodiment, the spray cleaning mechanism 23 is optionally a spray header positioned above the mesh conveyor belt 22, which is in communication with a pressure cleaning source via a conduit.

In this embodiment, an abutting mesh baffle 26 is optionally provided above the mesh conveyor 22 corresponding to the location of the negative pressure housing 24. When the negative pressure shell 24 is strongly adsorbed, the mesh baffle 26 effectively prevents the cooling adsorption medium in the accommodating groove from flowing randomly, so as to play a role in stabilization.

In this embodiment, the mesh conveyor belt 22 forms a driving loop by a driving roller 27 rotatably disposed on the frame 21 around a transverse axis, and the driving roller 27 is connected in a driving manner by a driving motor 28.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Claims

1. The utility model provides a biomass pyrolysis gas separation cooling circulation treatment facility which characterized in that includes: a cooling separation device (1) and a cooling adsorption medium regeneration device (2);

the cooling and separating device (1) comprises: a cooling shell (11), wherein one side of the cooling shell is provided with a cooling air inlet (101), and the other side of the cooling shell is provided with a cooling air outlet (102); the cooling shell (11) is sequentially provided with a cooling adsorption medium hopper (103), a cooling adsorption medium bulk cargo mechanism, a clapboard (12), a cooling adsorption medium discharge mechanism and a cooling water outlet (104) from top to bottom; a plurality of the partition plates (12) are vertically arranged at intervals to divide the interior of the cooling shell (11) into continuous W channels from the cooling air inlet (101) to the cooling air outlet (102);

the cooling adsorption medium regeneration device (2) comprises: the transmission device comprises a frame (21), a mesh conveyor belt (22) which is arranged on the transmission frame and can only pass through gas and liquid media; mesh conveyer belt (22) one end is equipped with the feed inlet, and the other end is equipped with the discharge gate, and is equipped with in proper order along feed inlet to discharge gate department and sprays wiper mechanism (23), negative pressure adsorption apparatus structure, negative pressure adsorption apparatus constructs and includes: a negative pressure shell (24) which is positioned at the bottom of the mesh conveyor belt (22) and is in sliding contact with the mesh conveyor belt, and a negative pressure pump (25) which is communicated with the negative pressure shell (24) through a pipeline; and the mesh conveying belt (22) is provided with a containing groove for containing a cooling adsorption medium, and the feed inlet receives the cooling adsorption medium discharged from the cooling adsorption medium discharge mechanism.

2. The biomass pyrolysis gas separation and cooling circulation treatment equipment is characterized in that the cooling and adsorption medium bulk cargo mechanism comprises: bulk cargo gyration casing (13) that the axis transversely set up and rotate bulk cargo cylinder (14) of setting in it, bulk cargo gyration casing (13) upper end communicate in cooling adsorption medium hopper (103), the lower extreme communicates in cooling casing (11) upper end, bulk cargo cylinder (14) both ends are rotated and are erect on bulk cargo gyration casing (13), and its one end passes through motor drive, still is equipped with radially outwards open-ended on the outer circumference of bulk cargo cylinder (14) and holds silo (141), is used for inserting the cooling adsorption medium in cooling adsorption medium hopper (103) when holding silo (141) and rotate to the opening up, is arranged in with cooling adsorption medium to the cavity of cooling casing (11) top when rotating to opening down.

3. The biomass pyrolysis gas separation and cooling circulation treatment device is characterized in that a material baffle plate (142) is arranged in the material containing groove (141) corresponding to the upper end position of the partition plate (12).

4. The biomass pyrolysis gas separation and cooling circulation treatment equipment is characterized in that bulk material teeth are staggered in the W channel.

5. The biomass pyrolysis gas separation cooling circulation treatment device according to claim 1, wherein the cooling adsorption medium discharge mechanism includes: the feeding port of the obliquely arranged screw conveyor (15) is lower and is positioned below the inside of the cooling shell (11), and the discharging port is positioned outside the cooling shell (11); a water leakage hole (16) is arranged at the bottom of one side of the screw conveyor (15) close to the feeding hole.

6. The biomass pyrolysis gas separation and cooling circulation treatment equipment according to claim 1, wherein an air outlet pipe (17) is arranged at the cooling air outlet (102), a push plate (18) is inserted and arranged on the cooling shell (11), and a filter screen (19) for blocking an inlet of the air outlet pipe (17) is arranged on the push plate (18).

7. The biomass pyrolysis gas separation and cooling circulation treatment equipment is characterized in that the cooling adsorption medium is a mixture of sand and activated carbon particles.

8. The biomass pyrolysis gas separation and cooling circulation treatment equipment is characterized in that the spray cleaning mechanism (23) is a spray head positioned above the mesh conveyor belt (22) and communicated with a pressure cleaning source through a pipeline.

9. The biomass pyrolysis gas separation and cooling circulation treatment equipment is characterized in that an abutting mesh baffle plate (26) is arranged above the mesh conveyor belt (22) corresponding to the position of the negative pressure shell (24).

10. The biomass pyrolysis gas separation and cooling circulation treatment equipment is characterized in that the mesh conveyor belt (22) forms a transmission loop by rotating a transmission roller (27) arranged on the rack (21) around a transverse shaft, and the transmission roller (27) is in transmission connection with a transmission motor (28).