CN208378434U - A kind of pot type retort - Google Patents

Abstract

The utility model relates to Activated Carbon Production fields, more particularly, to a kind of pot type retort.The pot type retort includes furnace body, the furnace interior is fixed with a carbonization tank, a quirk to heat carbonization tank is equipped between the inboard wall of furnace body and carbonization tank, bottom of furnace body immediately below the carbonization tank is equipped with a starting heat source opening, is additionally provided with one with carbonization gas collecting pipe below the furnace body.The utility model has the following beneficial effects: (1) is heated using external heating, and the active carbon free from admixture of generation, quality height；(2) heating rate is controllable in active carbon carbonization process, and the activated carbon surface free from flaw of generation reaches steel charcoal effect；(3) energy utilization rate of single unit system is high, can substantially meet self-centered effect.

Description

A kind of pot type retort

Technical field

The utility model relates to Activated Carbon Production fields, more particularly, to a kind of pot type retort.

Background technique

Active carbon is that a kind of specific surface area is high, porous carbon material of pore structure prosperity.Manufacture flourishing pore structure Process is activation, therefore, usually the method for manufacture active carbon activation method.Phosphoric acid activation method is to be with sponge Raw material and phosphoric acid are a kind of main method for preparing active carbon of activator, its technical process includes feedstock processing, dipping, charcoal Change, phosphoric acid are recycled, rinsing, drying, crushed, being sieved and packaging and other steps.It is efficiency highest in current Activated Carbon Production technology, A kind of activation method that energy consumption is minimum, effect on environment degree is minimum.Raw material used in phosphoric acid activation method is mainly plant fibre Tie up raw material, including timber, wood machining residues, wastes of crops and agricultural machining residue etc.；Activation needed for phosphoric acid activation Temperature is minimum, and phosphoric acid volatility is low and nontoxic；Charcoal percent conversion highest in raw material, active carbon yield is up to 40% or so.Phosphoric acid Activation method is most potential green active carbon industrial process.

During phosphoric acid activation plant fibrous raw material produces active carbon, charing is its critical process.Phosphoric acid activation The charing of process refers to impregnated of raw materials such as the sawdusts of phosphoric acid solution, 500oC or so is progressively heated in activation furnace, and retain For a period of time, charcoal is converted by plant fiber material, after phosphoric acid recycling is washed out, just obtains the active carbon of pore structure prosperity. The research of phosphoric acid activation method and production history be more than 30 years existing, wherein the hot submersion mode of the raw material of phosphoric acid in activation furnace It is all internal heat type, i.e., heat medium (such as high-temperature flue gas) is directly to contact with material, reaches heating purpose.Previous phosphoric acid Activating process and activation furnace apparatus are carried out according to internal heat type.

During phosphoric acid activation, following drawback is primarily present using the heating method of internal heat type:

(1) since high-temperature flue gas often contains small solid particle, cause the content of ashes of active carbon higher, significant shadow The quality for having rung active carbon reduces the selling price of active carbon, and therefore, the ash content for reducing phosphoric acid activation method active carbon is activity One of the major technique that charcoal manufacturing enterprise pays much attention to.

(2) it is heated using internal heat type, heat medium air-flow can aggravate activator phosphoric acid in dipping material and wave at high temperature Hair, improves the consumption of phosphoric acid, increases the production cost of active carbon.Therefore, it during phosphoric acid activation, reduces in flue gas Volatilization phosphoric acid amount can not only substantially reduce phosphoric acid consumption, reduce production cost, can also mitigate vent gas treatment burden.

(3) it being heated, is caused in activation using internal heat type, the heating rate of material is very fast, and is unable to control temperature, thus Cause the crack inside active carbon more, so that the overall mechanical properties of active carbon are poor, is unable to satisfy harsh use condition.

Such as a kind of a kind of retort group authorized in Chinese patent document, Authorization Notice No. are CN205528583U, it is made of retort, blower and tourie, and retort, blower and tourie are sequentially connected by pipeline, Retort is two or more, and the mode being linked into integrated artistic is parallel connection access.The utility model is using dry Technique is evaporated, the wood materials such as timber, shell are placed in closed retort, adds fuel in the combustion chamber, burning generates Hot gas is entered in retort by hot gas conduit, and anaerobic charing is heated and then realized to wood material, is generated in carbonization process Combustible byproducts enter combustion chambers burn further through pipeline, the gas of final combustion is introduced in tourie by blower to be inhaled Receipts processing, avoids environmental pollution.Retort in the retort group both can be used alone, can also more use simultaneously, The operating time can be saved, efficiency is improved.But there is also many shortcomings, such as its heating method is interior heat side Impurity can be brought into active carbon in carbonization process, lead to the quality decline of active carbon by formula, meanwhile, using interior heat side Formula can not control heating rate and temperature well, and the active carbon caused is mostly the carbon block of fragmentation, be unable to get nothing Crack, the high steel charcoal of mechanical strength, and need whole fuel to be added therefore its energy consumption is larger in its carbonization process.

Utility model content

The utility model is to overcome synthesis by internal resistance electric melting heating in the prior art that can introduce impurity, active carbon product in active carbon Matter is lower, and the surface crack of active carbon is more, and the larger problem of single unit system energy consumption, providing one kind can be added using external heating Heat, the active carbon free from flaw of generation have steel carbon effect, free from admixture, a kind of lower pot type retort of single unit system energy consumption.

To achieve the goals above, the utility model uses following technical scheme:

A kind of pot type retort, the pot type retort includes furnace body, and the furnace interior is fixed with a charcoal Change tank, between the inboard wall of furnace body and carbonization tank be equipped with a quirk to heat carbonization tank, the carbonization tank just under The bottom of furnace body of side is equipped with a starting heat source opening, is additionally provided with a carbonization gas collecting pipe below the furnace body.

Retort in the utility model, is heated using external heating, is opened first by starting heat source opening carbonization tank Dynamic heating, when the material in carbonization tank is carbonized to a certain extent, the pyrolysis gas for decompositing and that is heated can effectively enter dry It evaporates in gas collecting pipe, then uses this partial thermal decomposition gas as the energy, burning generates hot-air and enters in quirk, continues pair Carbonization tank is heated, so that whole device has achieved the effect that power self-support is self-sustaining, to save a large amount of fuel, is reduced Cost.Meanwhile being heated in the present invention using external heating, the temperature and heating rate of heating can pass through control hot-air Temperature is adjusted, so that material generates active carbon under conditions of slow heating, so that its surface free from flaw, guarantees life At active carbon be the complete active carbon of bulk, can achieve the effect that steel charcoal, and hot-air is not connect directly with material Touching, so that will not be infected with ash content and impurity in final active carbon, ensure that the quality of active carbon.

Preferably, being equipped with one layer of heat preservation thermal insulation layer around carbonization tank at the inboard wall of furnace body.

Heat insulation layer, which is arranged, enables to the hot-air in quirk quickly not cool down, so that the energy Utilization rate greatly promotes so that whole device have the effect of it is energy saving.

Preferably, the heat insulation layer below the carbonization tank is additionally provided with a starting heat source passages, described is opened Dynamic heat source passages are corresponding with starting heat source opening upper and lower position.

Since material is pyrolyzed not yet when most starting starting in the utility model, there is no pyrolysis gas, therefore most It needs to carry out when beginning external to provide pyrolysis heat, it is therefore desirable to which setting starting heat source opening, the heat for starting heat source opening can be with Starting heat source passages guiding to reach charing furnace bottom carry out preliminary pyrolysis, when pyrolysis gas reaches a certain concentration, Starting heat source opening can be closed, provides heat using self-centered mode, to achieve the effect that energy saving.

Preferably, being additionally provided with a bell above the carbonization tank, an exhaust is additionally provided in the middle part of the bell Hole.

Preferably, the furnace body can pass through flame path connecting pipe between quirk and quirk and destructive distillation between any two Carbonization gas connecting tube between gas collecting pipe and carbonization gas collecting pipe is fixedly connected, to be combined with each other integral.

Retort in the utility model can be combined with each other, so that production efficiency is further promoted, indirectly be dropped The cost and preparation efficiency of low production active carbon.

Preferably, the carbonization gas collecting pipe and combustion furnace piping connection, described quirk one end and burning boiler tube The road connection other end is connect with pipeline of fans.

In the utility model when the pyrolysis gas in carbonization tank reaches a certain amount of, it will be done by the water conservancy diversion of carbonization gas collecting pipe It evaporating gas to be introduced into combustion furnace, the gas of high temperature is obtained after combustion furnace burning, high-temperature gas heats carbonization tank by quirk, so that The efficiency of energy utilization of whole device greatly improves, while also can effectively improve the quality of active carbon, passes through combustion furnace Control can effectively adjust the temperature of hot-air according to the carbonization process of active carbon, ensure that the charing of final active carbon Journey improves the quality of the active carbon of generation.

Preferably, the blower is fixedly connected with smoke exhaust pipe.After hot-air heats carbonization tank, pass through row Smoke pipe and blower can be met environmental requirements effectively by harmless exhaust of hot air to outdoor.

Therefore, the utility model has the following beneficial effects:

(1) it is heated using external heating, the active carbon free from admixture of generation, quality is high；

(2) heating rate is controllable in active carbon carbonization process, the activated carbon surface free from flaw of generation, reaches steel charcoal effect Fruit；

(3) energy utilization rate of single unit system is high, can substantially meet self-centered effect.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of the utility model.

Wherein: furnace body 1, carbonization tank 2, quirk 3, starting heat source opening 4, carbonization gas collecting pipe 5, heat insulation layer 6, starting heat Source channels 7, bell 8, gas vent 9, flame path connecting pipe 10, carbonization gas connecting tube 11, combustion furnace 12, blower 13, smoke exhaust pipe 14.

Specific embodiment

The utility model is further described with specific embodiment with reference to the accompanying drawing.

In embodiment as shown in Figure 1, a kind of pot type retort, the pot type retort includes furnace body 1, the furnace It is fixed with a carbonization tank 2 inside body 1, a bell 8 is additionally provided with above the carbonization tank 2, is gone back in the middle part of the bell 8 Equipped with a gas vent 9, it is equipped with one layer of heat preservation thermal insulation layer 6 around carbonization tank 2 at 1 inner wall of furnace body, in the furnace body 1 A quirk 3 to heat carbonization tank 2,1 bottom of furnace body immediately below the carbonization tank 2 are equipped between wall and carbonization tank 2 Equipped with a starting heat source opening 4, the heat insulation layer 6 of 2 lower section of carbonization tank is additionally provided with a starting heat source passages 7, institute The starting heat source passages 7 stated are corresponding with starting 4 upper and lower position of heat source opening, and a carbonization gas is additionally provided with below the furnace body 1 Collecting pipe 5.

The furnace body 1 can pass through the flame path connecting pipe 10 and carbonization gas receipts between quirk 3 and quirk 3 between any two Carbonization gas connecting tube 11 between collector 5 and carbonization gas collecting pipe 5 is fixedly connected, the carbonization gas collecting pipe 5 and combustion furnace 12 piping connections, described 3 one end of quirk and the 12 piping connection other end of combustion furnace and 13 piping connection of blower, blower 13 and row Smoke pipe 14 is fixedly connected.

The specifically used method of the utility model is as follows: material being placed in carbonization tank 2 first, then lights starting heat source 4 pairs of carbonization tanks 2 of mouth carry out preliminary pyrolysis, are when the carbonization gas in carbonization tank 2 reaches a certain concentration, close starting heat source opening 4, Carbonization gas is imported into combustion furnace 12 through carbonization gas collecting pipe 5 and is burnt, hot-air is obtained, hot-air enters quirk 3 In continue to heat carbonization tank 2, by exothermic hot-air by successively by blower 13 and smoke exhaust pipe 14 by harmless hot-air It is emitted into air.

Claims (7)

1. a kind of pot type retort, characterized in that the pot type retort includes furnace body (1), and the furnace body (1) is internal solid Surely it is equipped with a carbonization tank (2), one is equipped between the furnace body (1) inner wall and carbonization tank (2) to heat carbonization tank (2) Quirk (3), furnace body (1) bottom immediately below the carbonization tank (2) is equipped with a starting heat source opening (4), the furnace body (1) lower section is additionally provided with a carbonization gas collecting pipe (5).

2. a kind of pot type retort according to claim 1, characterized in that around charing at described furnace body (1) inner wall Tank (2) is equipped with one layer of heat preservation thermal insulation layer (6).

3. a kind of pot type retort according to claim 2, characterized in that the thermal insulation separation below the carbonization tank (2) Thermosphere (6) is additionally provided with a starting heat source passages (7), the starting heat source passages (7) and starting heat source opening (4) upper and lower position It is corresponding.

4. a kind of pot type retort according to claim 1 or 2 or 3, characterized in that above the carbonization tank (2) also Equipped with a bell (8), a gas vent (9) is additionally provided in the middle part of the bell (8).

5. a kind of pot type retort according to claim 1, characterized in that the furnace body (1) can pass through between any two Between flame path connecting pipe (10) and carbonization gas collecting pipe (5) and carbonization gas collecting pipe (5) between quirk (3) and quirk (3) Carbonization gas connecting tube (11) be fixedly connected, to be combined with each other integral.

6. a kind of pot type retort according to claim 1 or 5, characterized in that the carbonization gas collecting pipe (5) and combustion It burns furnace (12) piping connection, the quirk (3) one end and combustion furnace (12) the piping connection other end and blower (13) pipeline connects It connects.

7. a kind of pot type retort according to claim 6, characterized in that the blower (13) and smoke exhaust pipe (14) is solid Fixed connection.