CN206955977U - The steam-cured upgrading processing unit of lignite - Google Patents

Abstract

The utility model discloses a kind of steam-cured upgrading processing unit of lignite, belong to pressure vessel；Aim to provide the lignite upgrading processing unit that a kind of capacity utilization is high, input and output material is easy to operate, service life is long, can avoid lignite spontaneous combustion.It is two that it, which includes steam-cured kettle,；Steam-cured kettle is by the kettle body body (2) fixed vertically, the top cover (1) being fixed on kettle body body, the passage (8) connected with kettle body body, the bottom (10) of the passage port of export is fixed on, the upper steam pipe (5) of more in kettle body body (2), more lower steam pipes (15) and more pumping drain pipes (3) are formed；Have on passage (8) and connected with air injection pipe (9), each air injection pipe (9) with nitrogen gas generating device (11).The utility model is simple in construction, easy to operate, efficiency high；It is a kind of steam-cured processing unit suitable for particulate species materials such as lignite.

Description

The steam-cured upgrading processing unit of lignite

Technical field

It the utility model is related to a kind of steam-cured processing unit, more particularly to a kind of steam-cured dress for lignite upgrading processing Put；Belong to pressure vessel.

Background technology

Steam-cured kettle is also known as still kettle, is a kind of large pressurized vessel, is commonly horizontal type structure.Air entrained concrete can be built Block, concrete tubular pile, Dinas brickes, coal-dust brick, calcium silicate board with microporous, New Type Light-weight Wall Material, insulation asbestos board, high intensity stone The construction materials such as cream carry out steam press maintenance, and purposes is quite varied.

Lignite is a kind of low-quality energy, and water content and oxygen content height, calorific value are low.In addition, the easy spontaneous combustion of lignite and weathering, Storage is difficult.In order to effectively utilize lignite, it usually needs it is dried upgrading processing.However, in water (absorption water in lignite With the capillary water being stored in lignite texture and capillary) through drying and upgrading processing and after being removed, can be inside lignite and table Face can leave substantial amounts of crack and texture, it is easier to oxidation by air heating and spontaneous combustion.Therefore, split using nitrogen filling lignite Gap and texture, to suppress its oxidation.

At present, generally use horizontal steam-cured kettle lignite is dried upgrading processing；In the presence of charging and draw operation trouble, Efficiency is low, floor space is big, capacity utilization is low, does not have the defects of nitrogen supplementary device.It is embodied in：

1) lignite is particulate species loose unpacked material, therefore will could typically be fed by container loading, draw operation； It is time-consuming, efficiency is low.

2) it is difficult to fill up in space in kettle, capacity utilization is low.

3) there is no nitrogen supplementary device, nitrogen filling lignite crack and texture are injected in no normal direction kettle.

4) the easy corrosion and damage because of electrochemical reaction of kettle body body：In order to avoid boiler corrosion and control fouling, stove Water is usually pH10 or so；When being passed through in weakly alkaline steam (equivalent to electrolyte) in kettle, between kettle body body and lignite Be easy to turn on and form two electrodes (equivalent to large-scale galvanic cell).Due to the presence of the factors such as temperature in the kettle, pressure, accelerate The redox reaction of galvanic cell, so as to cause the fast erosion to kettle body body, directly affect the service life of steam-cured kettle.

The content of the invention

For drawbacks described above present in prior art, the utility model aims to provide a kind of capacity utilization height, disengaging Expect the steam-cured upgrading processing unit of lignite that easy to operate, service life is long, can avoid lignite spontaneous combustion.

To achieve these goals, the utility model uses following technical scheme：It includes steam-cured kettle, and the steam-cured kettle is Two；Each steam-cured kettle by can-like structure and vertically fixed kettle body body, be fixed on the kettle body body upper port top cover, with Passage that the kettle body body lower port is docked and connected and is in tilted layout, it is fixed on the bottom of the passage port of export, positioned at kettle In body body and by steam pipe and more pumping drain pipe structures under vertical mode equally distributed more upper steam pipes and Duo Gen Into；Have on each passage and connected respectively by pipeline with nitrogen gas generating device with its internal air injection pipe connected, each air injection pipe.

There are two dischargers being horizontally mounted in passage；The lower semisection of kettle body body has and its internal air bubble connected Connector；Magnetic valve and blowoff valve are mounted on pipeline between connection nitrogen gas generating device and each kettle body body；Kettle body Multiple sensors are distributed with body；Electrode is installed in kettle body body.

Compared with the prior art, therefore the utility model is by adopting the above-described technical solution, have many advantages, such as following：

1) kettle body body employs vertical arrangement, therefore can will be granular in bulk brown by belt conveyor Coal is sent directly into kettle from upper port, and thoroughly avoiding horizontal steam-cured kettle needs first to load the trouble that could be fed with container； Powder feeding efficiency is not only increased, and space in kettle is filled up, improves capacity utilization by and can using lignite free-falling.

2) due to being provided with openable bottom in the lower port of kettle body body, therefore discharge of materials is very convenient quick, Improve discharging efficiency.

3) due to adding electrode in kettle body body, thus by accessory power supply can avoid because electrochemical reaction and The defects of causing kettle body body to be corroded and damaged, extend service life.

4) due to adding the nitrogen gas generating device connected with kettle, therefore vavuum pump can be passed through after drying and upgrading It will be vacuumized in kettle, be then injected into nitrogen to fill lignite crack and texture；Thoroughly lignite dieseling is prevented, it is ensured that storage With transport safely at a distance.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

Fig. 2 is A-A sectional views in Fig. 1.

In figure：Top cover 1, kettle body body 2, pumping drain pipe 3, electrode 4, upper steam pipe 5, manhole 6, discharger 7, guide Pipe 8, air injection pipe 9, bottom 10, nitrogen gas generating device 11, blowoff valve 12, magnetic valve 13, air bubble connector 14, lower steam pipe 15th, sensor 16, binding post 17.

Embodiment

The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.

As shown in Fig. 1~2：The kettle body body 2 of two can-like structures is fixed vertically, and the upper port of each kettle body body 2 has can The top cover 1 of unlatching, the lower port of each kettle body body 2 have the passage 8 for being mated with connecting and being in tilted layout, each passage 8 The port of export has in openable bottom 10, each kettle body body 2 and has heater and exhaust steam trap connection.The heater is by erecting Directly it is fixed on the top half of kettle body body 2 and equally distributed more is gone up steam pipe 5, is fixed on the lower half of kettle body body 2 vertically Divide and equally distributed more lower steam pipes 15 are formed, some through holes are distributed with each upper steam pipe 5 and lower steam pipe 15.Using The purpose of multistage steam pipe is in order to avoid causing each several part material uneven heating because the height dimension of kettle body body 2 is excessive It is even.The exhaust steam trap connection by fixing and equally distributed more pumpings drain pipe 3 is formed vertically, each drain pipe 3 that is evacuated Surface distributed has some through holes.Have on each passage 8 and pass through pipeline respectively with its internal air injection pipe 9 connected, each air injection pipe 9 (not indicated in figure) connects with nitrogen gas generating device 11.

For the ease of releasing material, material jam is avoided；Two horizontally disposed dischargers 7 are installed in passage 8. Rotating two dischargers 7 can make material loosen and smoothly flow out.

In order to avoid being blocked during discharges material, the sky connected with inside it is fixed with the lower semisection of kettle body body 2 Gas battery interface 14.

For the ease of controlling the injection rate of nitrogen, on the pipeline that nitrogen gas generating device 11 connects with each kettle body body 2 Magnetic valve 13 is installed；For the ease of excluding condensed water, blowoff valve 12 is installed on the pipeline close to air injection pipe 9.

For the ease of the temperature and pressure in control kettle, multiple sensors 16 are disposed with kettle body body 2.

For the ease of maintenance, the manhole 6 connected with kettle is provided with kettle body body 2.

In order to avoid kettle body body 2 because of electrochemical reaction corrosion and damage, have by support (in figure in each kettle body body 2 Do not indicate) fixed electrode 4 vertically；Each electrode 4 is electrically connected by binding post 17 with dc source (not shown).

Claims (8)

1. a kind of steam-cured upgrading processing unit of lignite, including steam-cured kettle；It is characterized in that：The steam-cured kettle is two；It is each steam-cured Kettle by can-like structure and vertically fixed kettle body body (2), be fixed on the kettle body body upper port top cover (1), with the kettle Passage (8) that body body (2) lower port is docked and connected and is in tilted layout, the bottom (10) for being fixed on the passage port of export, In the kettle body body (2) and by equally distributed more upper steam pipes (5) of vertical mode and more lower steam pipes (15) and More pumping drain pipes (3) are formed；Have on each passage (8) and its internal air injection pipe (9) connected, each air injection pipe (9) point Do not connected by pipeline with nitrogen gas generating device (11).

2. the steam-cured upgrading processing unit of lignite according to claim 1, it is characterised in that：There are two water in passage (8) The discharger (7) of safety dress.

3. the steam-cured upgrading processing unit of lignite according to claim 2, it is characterised in that：The lower semisection of kettle body body (2) Have and its internal air bubble connector (14) connected.

4. the steam-cured upgrading processing unit of lignite according to claim 1 or 2 or 3, it is characterised in that：Connecting nitrogen Magnetic valve (13) and blowoff valve (12) are mounted on pipeline between device (11) and each kettle body body (2).

5. the steam-cured upgrading processing unit of lignite according to claim 1 or 2 or 3, it is characterised in that：On kettle body body (2) Multiple sensors (16) are distributed with.

6. the steam-cured upgrading processing unit of lignite according to claim 4, it is characterised in that：Kettle body body is distributed with (2) Multiple sensors (16).

7. the steam-cured upgrading processing unit of lignite according to claim 5, it is characterised in that：Kettle body body is provided with (2) Electrode (4).

8. the steam-cured upgrading processing unit of lignite according to claim 6, it is characterised in that：Kettle body body is provided with (2) Electrode (4).