CN213231962U

CN213231962U - Closed efficient sludge pyrolysis gasifier

Info

Publication number: CN213231962U
Application number: CN202021255090.6U
Authority: CN
Inventors: 赵誉; 张帅
Original assignee: Henan Huatian Environmental Protection Technology Co ltd
Current assignee: Henan Huatian Environmental Protection Technology Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-05-18
Anticipated expiration: 2030-06-30

Abstract

The utility model discloses an airtight high-efficient mud pyrolysis gasifier, including the feeding storehouse, feeding storehouse bottom is equipped with the push-pull valve, the push-pull valve bottom is equipped with the seat plate valve, the seat plate valve bottom is equipped with the distributing device, the distributing device bottom is equipped with the furnace body, the furnace body top is located the distributing device right side and is equipped with the low temperature outlet duct, the inboard top of furnace body is equipped with the inner tube, the inner tube communicates with the distributing device, the inner tube below is equipped with the high temperature air flue, high temperature air flue left end top is equipped with the air flue support frame, high temperature air flue right-hand member top is equipped with the high temperature outlet duct, the furnace body is located the inner wall outside the high temperature air flue and is equipped with fire-resistant heat preservation wall, fire-resistant heat preservation wall bottom is close to; the utility model discloses airtight high-efficient mud pyrolysis gasifier has ash clearance simple and convenient, the stove pyrolysis is efficient, the fire bed smelts the sediment and is convenient for broken advantage in the stove.

Description

Closed efficient sludge pyrolysis gasifier

Technical Field

The utility model relates to an environmental protection equipment technical field especially relates to airtight type high-efficient mud pyrolysis gasifier.

Background

With the aggravation of water environment pollution in China and the acceleration of construction projects of sewage treatment plants, the treatment and disposal of sludge in the sewage treatment plants become a national problem. A large amount of sludge is not treated safely, so that secondary pollution to the environment is caused, the effect of building a sewage treatment plant is influenced to a great extent, and the sludge treatment needs to follow the principle of 'three-transformation', namely reduction, harmlessness and recycling. Firstly, the pollutants in the sludge are numerous, especially, too much industrial wastewater enters a municipal sewage treatment plant in China, the heavy metal content of the produced sludge is very high, and in addition, some antibiotics, persistent organic pollutants, environmental technologies and the like are added, so that in fact, many sludge in China can be called as dangerous waste, and it is very important to find a proper treatment method under the condition.

The existing common practice is to adopt a pyrolysis gasifier to treat sludge, the lower part of a water jacket on the side surface of a general furnace body is a sealed ash pond, and the ash pond is distributed on the outer side of a grate transmission device; on the other hand in the stove sludge gasification in-process including organic matter and inorganic matter, the reaction sequence is complicated, the reaction type is various, this reaction that just leads to fast mixes together with the slow reaction of speed, make whole reaction rate slow, reduce the holistic pyrolysis efficiency of gasifier, just need distinguish fast reaction and the slow reaction of speed, with the pyrolysis efficiency in the improvement stove, simultaneously, when the stove internal temperature is too high, the lime-ash on flame bed will smelt the sediment, both influence the combustion effect on flame bed, influence lime-ash again and discharge.

The utility model discloses a solve above-mentioned problem, provide airtight high-efficient mud pyrolysis gasifier for solve the problem that the gasification furnace ash sediment clearance commonly used at present is troublesome, combustion efficiency is low, the fire bed smelts the sediment easily.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a closed type high-efficiency sludge pyrolysis gasifier so as to solve the problems that the conventional gasifier is troublesome in ash cleaning, low in combustion efficiency and easy in slag refining in a fire bed, which are provided in the background art.

The invention is realized by the following technical scheme: the high-temperature furnace comprises a feeding bin, wherein a gate valve is arranged at the bottom of the feeding bin, a seat plate valve is arranged at the bottom of the gate valve, a distributor is arranged at the bottom of the distributor, a furnace body is arranged at the bottom of the distributor, a low-temperature outlet pipe is arranged at the top of the furnace body on the right side of the distributor, an inner cylinder is arranged at the top of the inner side of the furnace body and communicated with the distributor, a high-temperature air passage is arranged below the inner cylinder, an air passage support frame is arranged at the top of the left end of the high-temperature air passage, a high-temperature outlet pipe is arranged at the top of the right end of the high-temperature air passage, dust removal equipment is arranged at the right end of the high-temperature outlet pipe, a fire-resistant heat-preserving wall is arranged on the inner wall of the furnace body outside the high-temperature air passage, a, the rotary table is arranged at the bottom of the grate and connected with a driving device, grate holes are formed in the rotary table, and an ash falling pool is arranged below the grate.

Further, low temperature outlet duct bottom is equipped with first blast pipe, the pipeline and dust collecting equipment intercommunication are passed through to first blast pipe bottom, the dust collecting equipment right-hand member is equipped with the second blast pipe, first blast pipe right-hand member and second blast pipe intercommunication, the dust collecting equipment bottom is equipped with the water seal groove.

Furthermore, a middle air inlet pipe is arranged at the position, located on the right side of the grate, of the furnace body, a lower air inlet channel is arranged at the bottom of the grate, and valves are arranged on the middle air inlet pipe and the lower air inlet channel.

Furthermore, slag breaking strips are arranged on two sides of the grate and are of an asymmetric structure, and an ash plough is arranged at the bottom of the inner side of the lower water jacket and fixedly mounted at the bottom of the lower water jacket.

Further, the ash falling pool is of an inverted frustum structure.

Furthermore, a vent pipe is arranged at the right end of the stirring bin, the opening direction of the vent pipe is inclined upwards, and a valve is arranged on the vent pipe.

Furthermore, a lifting device is arranged on the stirrer.

Furthermore, the top ends of the low-temperature air outlet pipe and the high-temperature air outlet pipe are respectively provided with an inspection opening, and the inspection openings are respectively provided with a valve.

The beneficial effects of the utility model reside in that: 1. the utility model discloses airtight high-efficient mud pyrolysis gasifier makes the high temperature gas who is located the fast production of reaction rate of high temperature air flue below discharge from high temperature air flue through setting up the high temperature air flue, makes new quick reaction can continue to go on to improve quick reaction's reaction rate, stir the lime-ash of slagging-off to stirring storehouse below through the agitator and smash, make the lime-ash burning more abundant, improve the combustion efficiency in the stove.

2. The utility model discloses airtight high-efficient mud pyrolysis gasifier is favorable to increasing the reaction time of slow reaction through setting up fire-resistant heat preservation wall, makes the reaction more abundant.

3. The utility model discloses airtight high-efficient mud pyrolysis gasifier is through setting up the ash pond that falls of round platform form, compares original annular ash pond that falls and makes the lime-ash deposit more concentrated, is favorable to staff's deashing work.

Drawings

FIG. 1 is a schematic view of the entire structure of embodiment 1;

fig. 2 is a schematic structural view of the stirring bin in embodiment 1.

Wherein: 1. a feeding bin; 2. a gate valve; 3. a seat plate valve; 4. a distributing device; 5. a low-temperature air outlet pipe; 6. a furnace body; 7. an airway bracing frame; 8. a refractory insulating wall; 9. a high temperature airway; 10. a water feeding jacket; 11. a stirring bin; 12. a launching jacket; 13. a middle air inlet pipe; 14. a grate; 15. a high-temperature air outlet pipe; 16. a rotary table 17 and a lower air inlet channel; 18. an ash falling pool; 19. a breather pipe; 20. a gray plough; 21. a dust removal device; 22. a stirrer.

Detailed Description

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in the figure 1-2, the closed type high-efficiency sludge pyrolysis gasifier comprises a feeding bin 1, wherein the bottom of the feeding bin 1 is provided with a gate valve 2, the bottom of the gate valve 2 is provided with a seat plate valve 3, the bottom of the seat plate valve 3 is provided with a distributor 4, the bottom of the distributor 4 is provided with a furnace body 6, the feeding bin 1, the gate valve 2, the seat plate valve 3, the distributor 4 and the furnace body 6 are sequentially communicated, the top of the furnace body 6 is positioned on the right side of the distributor 4 and is provided with a low-temperature outlet pipe 5, the top end of the low-temperature outlet pipe 5 is provided with an inspection hole, a valve is arranged on the inspection hole to facilitate the maintenance of the low-temperature outlet pipe 5, the top of the inner side of the furnace body 6 is provided with an inner cylinder, the inner cylinder is communicated with the distributor 4, a high-temperature air, the top end of a high-temperature outlet pipe 15 is provided with an inspection opening, the inspection opening is provided with a valve, the high-temperature outlet pipe 15 is convenient to overhaul, the right end of the high-temperature outlet pipe 15 is provided with a dust removing device 21, the high-temperature outlet pipe 15 is communicated with the dust removing device 21 through a pipeline, the inner wall of a furnace body 6, which is positioned at the outer side of a high-temperature air passage 9, is provided with a fireproof heat preservation wall 8, one side, close to the high-temperature air passage 9, of the bottom of the fireproof heat preservation wall 8 is provided with a water feeding jacket 10, a stirring bin 11 is arranged below the high-temperature air passage 9, a stirrer 22 is arranged in the stirring bin 11, the stirrer 22 is provided with a lifting device, the lifting device is fixed between the stirring bin 11 and the stirrer 22 through bolts, the stirrer 22 has a preset stroke range in the vertical direction, ash residues for smelting slag with a certain thickness can, a grate 14 is arranged below the stirring bin 11, a lower water jacket 12 is arranged on the inner wall of the furnace body 6 positioned outside the grate 14, slag breaking strips are arranged on two sides of the grate 14 and are of an asymmetric structure, the slag breaking strips can rotate along with the grate 14 and are used for breaking slag smelted around the grate 14 to improve the pyrolysis efficiency, an ash plough 20 is arranged at the bottom of the inner side of the lower water jacket 12, the ash plough 20 is fixedly arranged at the bottom of the lower water jacket 12, the ash plough 20 is matched with the slag breaking strips to break the slag of the slag smelted around the grate, a rotary table 16 is arranged at the bottom of the grate 14, the rotary table 16 is connected with a driving device, grate holes are formed in the rotary table 16 to facilitate the falling of the slag below the rotary table 16 through the grate holes, an ash falling pool 18 is arranged below the grate 14, the ash falling pool 18 is of an inverted round platform structure, and the arrangement of the ash falling pool 18 enables the slag to be more concentrated than that of an original annular ash falling pool, the ash removal device is beneficial to the ash removal work of workers, a first exhaust pipe is arranged at the bottom of a low-temperature exhaust pipe 5, the bottom of the first exhaust pipe is communicated with a dust removal device 21 through a pipeline, dust in the low-temperature exhaust pipe 5 and the high-temperature exhaust pipe 15 is cleaned through the dust removal device 21, a second exhaust pipe is arranged at the right end of the dust removal device 21, the right end of the first exhaust pipe is communicated with the second exhaust pipe, combustible gas is discharged through the second exhaust pipe, a water seal groove is formed in the bottom of the dust removal device 21, a middle air inlet pipe 13 is arranged at the position, located on the right side of a grate 14, of a furnace body 6, a valve is arranged on the middle air inlet pipe 13, the air inlet amount is convenient to control from the middle of the furnace body.

The working principle is as follows: during the use, pour into mud from feeding storehouse 1, mud gets into in the furnace body 6, it dries downwards from the inner tube, the pyrolysis, form normal flame bed under the stirring storehouse 11 of 6 inside of furnace bodies, the pyrolytic reaction that takes place complicacy near stirring storehouse 11, the combustible gas temperature that the pyrolytic reaction that is fast generated is higher, high temperature combustible gas passes through high temperature air flue 9 direct discharge, the slow pyrolytic reaction of speed influences the rebound along with the interior updraft, slow production combustible gas, discharge through low temperature outlet duct 5 at last, thereby the pyrolytic reaction that the separation reaction velocity is different, improve interior pyrolytic efficiency of stove, the lime-ash that the final reaction finishes falls into the ash pond 18 that falls of round platform form, the staff of being convenient for clears up, and easy operation is swift.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. Closed type high-efficiency sludge pyrolysis gasification furnace, which is characterized in that: the device comprises a feeding bin (1), wherein a gate valve (2) is arranged at the bottom of the feeding bin (1), a seat plate valve (3) is arranged at the bottom of the gate valve (2), a distributor (4) is arranged at the bottom of the seat plate valve (3), a furnace body (6) is arranged at the bottom of the distributor (4), a low-temperature outlet pipe (5) is arranged at the top of the furnace body (6) on the right side of the distributor (4), an inner cylinder is arranged at the top of the inner side of the furnace body (6) and communicated with the distributor (4), a high-temperature air passage (9) is arranged below the inner cylinder, an air passage support frame (7) is arranged at the top of the left end of the high-temperature air passage (9), a high-temperature outlet pipe (15) is arranged at the top of the right end of the high-temperature air passage (9), a dust removal device (21) is, the fire-resistant heat-insulating furnace is characterized in that a water feeding jacket (10) is arranged on one side, close to a high-temperature air passage (9), of the bottom of the fire-resistant heat-insulating wall (8), a stirring bin (11) is arranged below the high-temperature air passage (9), a stirrer (22) is arranged in the stirring bin (11), a grate (14) is arranged below the stirring bin (11), a water discharging jacket (12) is arranged on the inner wall, located on the outer side of the grate (14), of the furnace body (6), a rotary table (16) is arranged at the bottom of the grate (14), the rotary table (16) is connected with a driving device, a grate hole is formed in the rotary table (16), and an ash falling pool (18.

2. The enclosed high-efficiency sludge pyrolysis gasifier according to claim 1, characterized in that: low temperature outlet duct (5) bottom is equipped with first blast pipe, pipeline and dust collecting equipment (21) intercommunication are passed through to first blast pipe bottom, dust collecting equipment (21) right-hand member is equipped with the second blast pipe, first blast pipe right-hand member and second blast pipe intercommunication, dust collecting equipment (21) bottom is equipped with the water seal groove.

3. The enclosed high-efficiency sludge pyrolysis gasifier according to claim 1, characterized in that: the furnace body (6) is provided with a middle air inlet pipe (13) at the position on the right side of the grate (14), a lower air inlet channel (17) is arranged at the bottom of the grate (14), and valves are arranged on the middle air inlet pipe (13) and the lower air inlet channel (17).

4. The enclosed high-efficiency sludge pyrolysis gasifier according to claim 1, characterized in that: the slag breaking bars are arranged on two sides of the grate (14) and are of an asymmetric structure, the bottom of the inner side of the sewage jacket (12) is provided with an ash plough (20), and the ash plough (20) is fixedly installed at the bottom of the sewage jacket (12).

5. The enclosed high-efficiency sludge pyrolysis gasifier according to claim 1, characterized in that: the ash falling pool (18) is of an inverted frustum structure.

6. The enclosed high-efficiency sludge pyrolysis gasifier according to claim 1, characterized in that: the right end of the stirring bin (11) is provided with a vent pipe (19), the opening direction of the vent pipe (19) is inclined upwards, and a valve is arranged on the vent pipe (19).

7. The enclosed high-efficiency sludge pyrolysis gasifier according to claim 1, characterized in that: and a lifting device is arranged on the stirrer (22).

8. The enclosed high-efficiency sludge pyrolysis gasifier according to claim 1, characterized in that: the top ends of the low-temperature air outlet pipe (5) and the high-temperature air outlet pipe (15) are respectively provided with an inspection opening, and the inspection openings are respectively provided with a valve.