CN213005783U - End-air type wood carbonization kiln - Google Patents

Abstract

The utility model discloses an end wind formula timber carbonization kiln, including the steel kiln body, be equipped with a baffle parallel with the end plate near end plate department in the kiln body, the baffle separates carbonization district and hot-blast district into along length direction with the kiln body, leave the heated air circulation passageway between baffle both sides limit and the internal wall of kiln, axial-flow type heated air circulation fan that the level was arranged is equipped with in hot-blast district, air outlet at heated air circulation fan is equipped with the electrical heating finned tube, kiln body bottom in carbonization district is equipped with the skip track, kiln body bottom between the skip track is equipped with the evaporation basin, be equipped with the wooden skip of loading on the skip track, be equipped with at the top of skip and press the material pouring weight, be equipped with the forced air cooling intermediate layer in the barrel outside that the carbonization district corresponds, be equipped with the air exit at the interbedded top of forced air cooling, be equipped with the fan of airing exhaust at the air exit, it has the air intake to. The end air type wood carbonization kiln has the advantages of simple structure, good carbonized wood quality, low equipment operation cost and the like.

Description

End-air type wood carbonization kiln

Technical Field

The utility model relates to a carry out carbonization's equipment, especially a timber carbonization kiln who adopts end wind formula heating to the timber surface.

Background

The wood carbonization kiln in the prior art mostly adopts a kiln body with a rectangular section, such as the wood carbonization kiln disclosed in CN201186912Y, the carbonization kiln does not have a cooling device, the wood needs to be naturally cooled to 40 ℃ in the kiln after the carbonization is finished, and the wood can be taken out of the kiln, the process usually needs 20-30 hours, so that the effective utilization rate of the wood carbonization kiln is low. In addition, the water tank of the wood carbonization kiln is arranged at the bottom corner of the kiln body and is positioned at a hot air circulation dead angle, so that the uneven distribution of steam in the kiln is easily caused, and the carbonization effect is influenced. CN 103542696A discloses a timber vacuum drying carbonization integrated kiln, and the kiln body adopts a water-cooled structure, and after the carbonization of the timber, cooling water is introduced into the kiln body, and the timber in the kiln is cooled by cooling water circulation. In addition, when the kiln body is cooled by cooling water circulation, a special water circulation cooling system needs to be arranged outside the kiln body, and the manufacturing and running cost of equipment is increased.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is: the end air type wood carbonization kiln has the advantages of simple structure, good carbonized wood quality, low equipment operation cost and the like.

The technical scheme for solving the technical problem is as follows: an end-air type wood carbonization kiln comprises a steel kiln body consisting of a cylinder body, an end plate and a kiln door, wherein a heat-insulating layer is arranged outside the kiln body, a partition plate parallel to the end plate is arranged in the kiln body near the end plate and divides the kiln body into a carbonization area and a hot air area along the length direction, a hot air circulating channel is left between the two side edges of the clapboard and the inner wall of the kiln body, an axial-flow type hot air circulating fan which is horizontally arranged is arranged in a hot air area, an air outlet of the hot air circulating fan is provided with an electric heating finned tube, the bottom of the kiln body of the carbonization zone is provided with a skip track, an evaporation water tank is arranged at the bottom of the kiln body between the skip tracks, a skip for loading wood is arranged on the skip tracks, a material pressing weight is arranged at the top of the skip car, an air-cooled interlayer is arranged at the outer side of the cylinder body corresponding to the carbonization area, an air outlet is arranged at the top of the air-cooling interlayer, an air exhaust fan is arranged at the air outlet, and an air inlet is arranged at the bottom of the air-cooling interlayer.

As a further improvement of the utility model: the two ends of the bottom of the air cooling interlayer along the length direction of the cylinder body are respectively provided with an air inlet, and the air outlet is positioned at the center of the top of the air cooling interlayer along the length direction of the cylinder body.

As a further improvement of the utility model: the material pressing weight blocks are arc-shaped top pressing material weight blocks which are filled between the top of the skip car and the top of the kiln body and prevent hot air from short-circuit circulation above the skip car.

As a further improvement of the utility model: the axial-flow type heated air circulation fan is a variable-frequency speed-regulating axial-flow fan capable of reversely supplying air, and a fan driving motor is fixed outside the kiln body.

Has the advantages that: the end air type wood carbonization kiln adopts the cylindrical kiln body, and forms high-temperature airflow from the end part of the kiln body to heat wood, so that the end air type wood carbonization kiln has less fans compared with a wood carbonization kiln adopting a traditional box type kiln body and top air heating, the heated air circulation is more uniform, and the production cost and the operation cost of equipment are lower; the evaporation water tank is arranged at the bottom of the kiln body, and the radian of the kiln body is fully utilized to form the water tank, so that the structure of the wood carbonization kiln is simpler, saturated steam can be ensured to be filled in the kiln body all the time without a complex steam supply system, the wood is prevented from being locally combusted during high-temperature heating, the quality of the carbonized wood is better, and the equipment cost and the operation cost are lower; the air cooling interlayer is arranged on the outer side of the barrel corresponding to the carbonization area, the air outlet is arranged at the top of the air cooling interlayer, the air exhaust fan is arranged at the air outlet, the technical characteristic that the air inlet is formed in the bottom of the air cooling interlayer is adopted, after wood carbonization is finished, the air exhaust fan is utilized to enable outside air to enter the air cooling interlayer from the air inlet and then to be discharged from the air outlet, air is used for cooling the high-temperature kiln body and the wood in the kiln body, the defects that the kiln body is easily damaged by water cooling, potential safety hazards exist due to severe vaporization after water enters the interlayer, the wood is easily cracked due to high cooling speed and the like are avoided, the cooling is gentle, the wood is not easily cracked, in addition, the gas coming out of the air cooling interlayer can be directly discharged, a water circulation system is needed like water. The kiln body is cooled more uniformly and at a higher cooling speed due to the technical characteristics that the air inlets are respectively formed at the two ends of the bottom of the air-cooling interlayer along the length direction of the cylinder body, and the air outlet is positioned at the center of the top of the air-cooling interlayer along the length direction of the cylinder body. The technical characteristics that the material pressing weight blocks are filled between the top of the skip car and the top of the kiln body and are arc-shaped top material pressing weight blocks for preventing hot air from being in short circuit circulation above the skip car are adopted, and the material pressing weight blocks are used for separating air channels on two sides of the skip car from the top of the skip car, so that the material pressing weight blocks can prevent hot air short circuit in the kiln while preventing wood from being deformed in the heating process, hot air is circulated according to a specified route, and the wood is uniformly heated. Owing to adopted axial-flow type heated air circulation fan is the variable frequency speed governing axial-flow fan that can reverse the air supply, at the outside fixed fan driving motor's of the kiln body technical characteristic, through control motor just reversing, can conveniently realize hot-blast reverse circulation, makes timber thermally equivalent, simultaneously through variable frequency speed governing, can accurate control wind speed, amount of wind, and then accurate control is to timber output carbonization heat, makes the utility model discloses an end wind formula timber carbonization kiln can satisfy the requirement of multiple timber carbonization, and the timber quality of carbonizing is better.

Drawings

The end-wind type wood carbonization kiln of the present invention will be further described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of an end-air type wood carbonizing kiln of the present invention;

FIG. 2 is a schematic view of the horizontal section structure of the end-wind type wood carbonizing kiln of the present invention;

fig. 3 is a schematic cross-sectional structure diagram of the end-wind type wood carbonizing kiln of the present invention.

Detailed Description

As shown in fig. 1 and 2, the utility model discloses an end wind formula timber carbonization kiln includes the steel kiln body that comprises barrel 4, end plate 5 and kiln door 1, is equipped with heat preservation 8 at the external heat preservation that is equipped with of kiln, is equipped with a bar baffle 9 parallel with the end plate near end plate department at the internal kiln, and carbonization district 10 and hot-blast district 12 are separated into along length direction to the baffle with the kiln is internal, leaves heated air circulation passageway 16 between baffle both sides limit and the internal wall of kiln, is equipped with axial-flow type heated air circulation fan 14 that the level was arranged in the heated air district, axial-flow type heated air circulation fan is the variable frequency speed governing axial-flow fan that can reverse the air supply, at the external fixation of the kiln body has fan driving motor 15. An electric heating finned tube 13 is arranged at an air outlet of the hot air circulating fan, an air cooling interlayer 7 is arranged on the outer side of the barrel corresponding to the carbonization area, an air outlet 2 is arranged at the top of the air cooling interlayer, an air exhaust fan 3 is arranged at the air outlet, and an air inlet 6 is formed in the bottom of the air cooling interlayer. Preferably, two ends of the bottom of the air-cooling interlayer along the length direction of the cylinder are respectively provided with an air inlet, and the air outlet is positioned at the center of the top of the air-cooling interlayer along the length direction of the cylinder. The kiln body is also connected with an exhaust pipe which can discharge the waste gas generated in the carbonization process out of the kiln body, and the tail end of the exhaust pipe is connected with a water-sealed dust removal device which can adopt a water-sealed dust remover disclosed by CN 208375518U.

As shown in fig. 3, a skip track is arranged at the bottom of the kiln body in the carbonization area, an evaporation water tank 18 is arranged at the bottom of the kiln body between the skip tracks, the evaporation water tank is formed by enclosing two arc-shaped end plates 17 welded at the bottom of the kiln body and the arc-shaped bottom of the kiln body together, a skip 11 for loading wood is arranged on the skip track, a material pressing weight 19 is arranged at the top of the skip, the material pressing weight is an arc-shaped top pressing weight which is filled between the top of the skip and the top of the kiln body and used for preventing hot air from short-circuiting and circulating above the skip, and the distance between the top of the material pressing weight and the top of the kiln is not more than 2 cm.

Claims (4)

1. The utility model provides an end wind formula timber carbonization kiln, includes the steel kiln body that comprises barrel, end plate and kiln door, is equipped with heat preservation, characterized by outside the kiln body: the kiln is characterized in that a partition plate parallel to the end plate is arranged in the kiln body and close to the end plate, the partition plate divides the kiln body into a carbonization area and a hot air area along the length direction, a hot air circulation channel is reserved between two side edges of the partition plate and the inner wall of the kiln body, an axial-flow type hot air circulating fan is horizontally arranged in the hot air area, an electric heating finned tube is arranged at an air outlet of the hot air circulating fan, a trolley track is arranged at the bottom of the kiln body in the carbonization area, an evaporation water tank is arranged at the bottom of the kiln body between the trolley tracks, a trolley for loading wood is arranged on the trolley track, a material pressing weight is arranged at the top of the trolley, an air cooling interlayer is arranged on the outer side of the barrel corresponding to the carbonization area, an air outlet is arranged at the top of the air cooling interlayer, an air.

2. The end-wind wood carbonizing kiln of claim 1, wherein: the two ends of the bottom of the air cooling interlayer along the length direction of the cylinder body are respectively provided with an air inlet, and the air outlet is positioned at the center of the top of the air cooling interlayer along the length direction of the cylinder body.

3. The end-wind wood carbonizing kiln of claim 1, wherein: the material pressing weight blocks are arc-shaped top pressing material weight blocks which are filled between the top of the skip car and the top of the kiln body and prevent hot air from short-circuit circulation above the skip car.

4. An end wind type wood carbonization kiln according to any one of claims 1 to 3, characterized in that: the axial-flow type heated air circulation fan is a variable-frequency speed-regulating axial-flow fan capable of reversely supplying air, and a fan driving motor is fixed outside the kiln body.

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