阅读说明：本技术 一种烟叶密集烤房自动加煤系统及装置 (Automatic coal feeding system and device for tobacco leaf bulk curing barn ) 是由 袁坤 唐玉春 曾贤义 杨庆焱 周贵琨 陈玉杰 刘采学 李福荣 于 2019-11-18 设计创作，主要内容包括：本发明公开了一种烟叶密集烤房自动加煤装置,包括烤房、安装在烤房内的供热系统,炉蓖和置于炉蓖下方的风室,外置在烤房外的加煤斗,加煤斗的底部安装有连接至炉蓖的送煤套管,送煤绞轮置于送煤套管内延伸至炉蓖,送煤电机安装于送煤绞轮的外端部上,风室底部通过送风管连接至安装于烤房外的助燃风机,自动控制仪连接至送煤电机并接入供热系统上的温度传感信号,当烤房内的温度出现下降时,自动控制仪自动启动送煤电机,煤绞轮将加煤斗内的煤块按量按速的输送至炉蓖内燃烧,温度达到稳定值后停止加煤,从而实现自动加煤的控制,免去了人工监管、人工加煤,且加煤量可以达到更加精准的控制,保障了烤房的温度控制的精确性,提高对烤烟的烘烤品质。(The invention discloses an automatic coal feeding device of a tobacco leaf bulk curing barn, which comprises a curing barn, a heat supply system arranged in the curing barn, a grate, a wind chamber arranged below the grate, and a coal feeding hopper arranged outside the curing barn, wherein a coal feeding sleeve connected to the grate is arranged at the bottom of the coal feeding hopper, a coal feeding winch is arranged in the coal feeding sleeve and extends to the grate, a coal feeding motor is arranged at the outer end part of the coal feeding winch, the bottom of the wind chamber is connected to a combustion fan arranged outside the curing barn through a blast pipe, an automatic controller is connected to the coal feeding motor and is connected with a temperature sensing signal on the heat supply system, when the temperature in the curing barn drops, the automatic controller automatically starts the coal feeding motor, the coal feeding winch conveys coal blocks in the coal feeding hopper into the grate according to the speed for combustion, the coal feeding is stopped after the temperature reaches a stable value, thereby realizing the control of automatic coal feeding, avoiding manual supervision and manual coal feeding, and the coal feeding amount can be controlled more accurately, the accuracy of temperature control of the curing barn is guaranteed, and the curing quality of the flue-cured tobacco is improved.)

1. The utility model provides an automatic coal device that adds of tobacco leaf bulk curer, including roast room (1), install the heating system in roast room (1), grate (2) and air chamber (3) of arranging grate (2) below in, a serial communication port, still include external coal hopper (4) outside roast room (1), coal feeding sleeve pipe (5) that are connected to grate (2) are installed to the bottom of coal hopper (4), coal feeding winch (6) are arranged in and are sent coal sleeve pipe (5) and extend to grate (2), coal feeding motor (7) are installed on the outer tip of coal feeding winch (6), air chamber (3) bottom is connected to combustion-supporting fan (9) of installing outside roast room (1) through blast pipe (8).

2. The automatic coal feeding device of the tobacco leaf bulk curing barn according to the claim 1, further comprising an automatic controller (10), wherein the automatic controller (10) is connected to the coal feeding motor (7) and is connected to a temperature sensing signal of a heating system.

3. The automatic coal feeding device of the tobacco leaf bulk curing barn according to claim 1, wherein the bottom surface of the grate (2) is inclined, the grate is inclined downwards from the coal feeding end to the other end gradually, the distance between the two side surfaces is increased gradually, the cross section of the grate (2) is U-shaped, the side walls to the bottom surface are continuous smooth arc surfaces, a grate bar (11) with a plurality of ventilation holes (12) is arranged in the middle of the bottom surface, and the air chamber (3) is arranged right below the grate bar (11).

4. The automatic coal feeding device of the tobacco leaf bulk curing barn according to claim 3, wherein the vent holes (12) are in the shape of a strip, and the strip-shaped vent holes (12) have a trapezoidal cross section with a narrow top and a wide bottom and are transversely divided into a plurality of rows which are mutually staggered between two adjacent rows.

5. The automatic coal feeding device of the tobacco leaf bulk curing barn according to claim 4, wherein the grate (2) is integrally cast by using RT heat-resistant cast iron material, the width of the upper opening of the strip-shaped ventilation hole (12) is 8mm, the width of the lower opening of the strip-shaped ventilation hole is 23mm, the length of the ventilation hole is 100mm, the distance between the lower openings of two adjacent rows is 25mm, and the total three rows are distributed in the number of 7-8-7.

6. The automatic coal feeding device of the tobacco leaf bulk curing barn according to claim 1, wherein the air chamber (3) is in a trapezoidal shape with two sides of the cross section narrowing downwards, the bottom of the two sides is provided with an automatic ash falling port (13), the air supply pipe (8) is connected to the back side surface of the air chamber (3), and the front side surface of the air chamber (3) is an inclined surface inclining downwards.

7. The automatic coal feeding device for the tobacco leaf bulk curing barn according to claim 1, wherein a smoke backflow prevention near pipe (14) communicated with the blast pipe (8) is upwards arranged on the part of the coal feeding sleeve (5) close to one end of the grate (2), the smoke backflow prevention near pipe (14) is communicated with the inside of the coal feeding sleeve (5) and the inside of the blast pipe (8) in a C shape, and the coal feeding sleeve (5) and the blast pipe (8) are respectively communicated with the inside of the coal feeding sleeve (5) and the inside of the grate, wherein: one end of the coal feeding sleeve (5) is a flat opening, and one end of the air supply pipe (8) is an oblique opening and is connected to the side surface of the air supply pipe (8).

8. The automatic coal feeding device of the tobacco leaf bulk curing barn according to claim 1, wherein a furnace door (15) is arranged on the wall of the curing barn (1) above the grate (2), a metal door frame is welded at the opening position of the furnace door (15), the furnace door (15) is arranged, the furnace door (15) adopts a punch forming processing mode, the furnace door (15) is of a double-layer structure and is respectively an outer layer steel plate and an inner layer buckle plate, heat insulation and heat preservation refractory materials are embedded between the layers, the edge of the furnace door (15) is inwards turned over to form a groove with the inner layer buckle plate, and high-temperature resistant sealing materials are filled in the groove.

9. The automatic coal feeding device of the tobacco leaf bulk curing barn according to claim 8, wherein the furnace door (15) is in shaft-latch lock connection with the door frame, and the surface of the furnace door is sprayed with high-temperature resistant silver gray finish.

10. An automatic coal feeding system of a tobacco leaf bulk curing barn (1) comprises a heating system in the curing barn (1) and is characterized by further comprising a coal feeding reel (6) connected to a grate (2) and an air supply pipe (8) connected to the lower portion of the grate (2), wherein the coal feeding reel (6) is connected to a reel motor, the air supply pipe (8) is connected to a combustion fan (9), a temperature detector of the heating system, the combustion fan (9) and the reel motor are all connected to a control system,

the control system is used for detecting a temperature detector of the heat supply system in real time, and when the real-time temperature value of the temperature detector is lower than a preset value by at least 0.5 ℃, a reel motor is started to convey the coal blocks into the grate (2); and when the real-time temperature value of the temperature detector is higher than the preset value by at least 0.8 ℃, stopping the reel motor.

Technical Field

The invention relates to the technical field of related equipment of bulk curing barn for curing tobacco leaves, in particular to an automatic coal feeding system and device for the bulk curing barn for curing the tobacco leaves.

Background

The bulk tobacco curing barn is a special device for processing tobacco leaves in the tobacco industry, the basic structure of the bulk tobacco curing barn comprises a tobacco containing chamber and a hot air chamber, and the main devices comprise a heat supply device, a ventilation and dehumidification device and a temperature control device.

At present, farmers need to carry out timing inspection on the real-time temperature of a curing barn during curing tobacco so as to ensure the quality of the cured tobacco, and because the cured tobacco has long duration and often needs manual operations such as night coal adding and the like at night, once errors occur, the quality problem of the whole batch of cured tobacco can be caused, and if the curing barn is concentrated and more, the required labor cost is also very high; the addition amount can not be accurately controlled by using artificial coal feeding, and the judgment is often carried out by manual experience, so that the coal feeding amount is small, the temperature is insufficient, and the combustion is insufficient and uneven; the coal feeding amount is large, the temperature rise is fast, and the quality control of flue-cured tobacco is affected.

Disclosure of Invention

In order to solve the defects and defects of the prior art, the inventor designs an automatic coal feeding system and device of a tobacco leaf bulk curing barn through research and development, can effectively solve the problems of manual coal feeding, can save labor cost, reduce manpower of workers, realize automatic control coal feeding operation of equipment, can realize automatic and on-demand coal block feeding under long-time unattended monitoring, and keep necessary heat supply of the curing barn.

Specifically, the invention is realized by the following steps: an automatic coal feeding device for a tobacco leaf bulk curing barn comprises a curing barn, a heating system arranged in the curing barn, a grate, a wind chamber arranged below the grate, a coal feeding hopper arranged outside the curing barn, a coal feeding sleeve connected to the grate and arranged at the bottom of the coal feeding hopper, a coal feeding winch arranged in the coal feeding sleeve and extending to the grate, a coal feeding motor arranged at the outer end of the coal feeding winch, and a combustion-supporting fan arranged outside the curing barn and connected to the bottom of the wind chamber through an air supply pipe.

Furthermore, the coal-feeding coal.

Furthermore, the bottom surface of the grate is inclined, the grate gradually inclines from the coal inlet end to the other end, the distance between the two side surfaces of the grate is gradually increased, the cross section of the grate is U-shaped, the side walls to the bottom surface are continuous smooth cambered surfaces, the grate bars with a plurality of ventilation holes are arranged in the middle of the bottom surface, and the air chamber is arranged right below the grate bars.

Further, the ventilation hole is the bar form, and the ventilation hole of bar form is under the narrow trapezoidal shape cross-section of width to transversely divide into a plurality of rows and distribute according to adjacent dislocation each other between two rows.

Further, the grate is integrally cast by RT heat-resistant cast iron materials, the width of the upper opening of the strip-shaped vent hole is 8mm, the width of the lower opening of the strip-shaped vent hole is 23mm, the length of the strip-shaped vent hole is 100mm, the distance between the lower openings of two adjacent rows is 25mm, and the total number of the three rows is 7-8-7.

Furthermore, the air chamber is in a trapezoid shape with two sides of the cross section narrowing downwards, the bottom ends of the two sides are provided with automatic ash falling openings, the air supply pipe is connected to the back side surface of the air chamber, and the front side surface of the air chamber is a downward inclined surface.

Furthermore, a smoke backflow prevention near-path pipe communicated to the blast pipe is upwards arranged on the part, close to one end of the grate, of the coal feeding sleeve, the smoke backflow prevention near-path pipe is C-shaped and is respectively communicated to the inside of the coal feeding sleeve and the inside of the blast pipe, and the smoke backflow prevention near-path pipe is characterized in that: one end of the coal feeding sleeve is a flat opening, and the other end of the air feeding sleeve is an oblique opening and is connected to the side surface of the air feeding pipe.

Furthermore, a furnace door is arranged on the wall of the baking room above the grate, a metal door frame is welded at the opening position of the furnace door, the furnace door is arranged, the furnace door adopts a punch forming processing mode, the furnace door is of a double-layer structure and is respectively an outer-layer steel plate and an inner-layer buckle plate, heat-insulating and heat-preserving refractory materials are embedded between layers, the edge of the furnace door is inwards turned over to form a groove with the inner-layer buckle plate, and high-temperature-resistant sealing materials are filled.

Furthermore, the furnace door is in lock-type connection with the door frame by adopting a shaft bolt, and the surface of the furnace door is sprayed with high-temperature-resistant silver gray finish paint.

The invention provides an automatic coal feeding system of a tobacco leaf bulk curing barn, which comprises a heating system in the curing barn, a coal feeding reel connected to a grate and an air supply pipe connected to the lower part of the grate, wherein the coal feeding reel is connected to a reel motor, the air supply pipe is connected to a combustion-supporting fan, a temperature detector, the combustion-supporting fan and the reel motor of the heating system are all connected to a control system, the control system is used for detecting the temperature detector of the heating system in real time, and when the real-time temperature value of the temperature detector is lower than the preset value by at least 0.5 ℃, the reel motor is started to convey coal blocks into the grate; and when the real-time temperature value of the temperature detector is higher than the preset value by at least 0.8 ℃, stopping the reel motor.

The working principle of the invention is introduced: the coal feeding winch wheel, the coal feeding motor and related accessory components are arranged to form an automatic coal feeding system, namely when the temperature in the curing barn drops, the fuel is insufficient, at the moment, the control system automatically starts the coal feeding motor which drives the coal feeding winch wheel to rotate, so that coal blocks in the coal feeding hopper are continuously conveyed into the grate at a certain speed according to the amount and are combusted, the coal feeding is stopped when the temperature reaches a stable value, and the process is circulated repeatedly, so that the automatic coal feeding control is realized, the manual supervision and manual operation are omitted, the coal feeding amount can be controlled more accurately, the accuracy of the temperature control of the curing barn is further guaranteed, and the curing quality of flue-cured tobacco can be further improved.

The invention has the beneficial effects that: the automatic coal feeding system and the device for the tobacco leaf bulk curing barn have the advantages that feeding, temperature rising and temperature control are all integrally controlled by the automatic controller, the automation degree is high, the hopper arrangement is reasonable, fuel can be fed automatically for 10-12 hours per barn, the operation intensity is reduced, tobacco growers have high acceptance degree on the automatic coal feeding device, the operation and the use are skillful, the accurate execution of a curing process is facilitated, the energy consumption and the labor intensity are reduced, and the quality of cured tobacco leaves is improved. The temperature and humidity control is more accurate, the implementation of the baking process is facilitated, the dry bulb control of the automatic coal feeding baking room is generally between-0.5 and +0.8 ℃, the wet bulb control is within the range of +/-0.5 ℃, and the temperature difference of the dry bulb of the manual coal feeding baking room is between-2 and +4 ℃. The energy consumption, the labor intensity and the labor cost for baking are reduced, the automatic coal feeding baking room is favorable for the baking process to be carried out in place, the quality of the baked tobacco leaves is improved, data is obtained after experiments, the first-class tobacco ratio is increased by 6.6 percent, the average price is increased by 0.7 yuan/kg, the yield per mu is increased by 108.8 yuan, and the income of farmers is favorably improved.

Drawings

FIG. 1 is a front view of a grate according to the present invention;

FIG. 2 is a right side view of the structure of a grate according to the present invention;

FIG. 3 is a schematic plane view of the grate structure of the present invention;

FIG. 4 is a schematic structural cross-sectional view of a grate according to the present invention;

FIG. 5 is a schematic structural view of an automatic coal feeding device of a tobacco leaf bulk curing barn according to the present invention;

FIG. 6 is a schematic structural view of an automatic coal feeding device of a tobacco leaf bulk curing barn according to the present invention;

FIG. 7 is a schematic structural perspective view of the automatic coal feeding device of the tobacco bulk curing barn according to the present invention;

FIG. 8 is a schematic structural view of a smoke backflow prevention proximal tube according to the present invention;

FIG. 9 is a schematic view of the installation position of the automatic coal feeding device of the tobacco leaf bulk curing barn according to the present invention;

FIG. 10 is a schematic structural view of a curing barn equipped with the automatic coal-feeding device of the tobacco bulk curing barn of the present invention;

wherein: the system comprises a baking room 1, a grate 2, an air chamber 3, a coal hopper 4, a coal feeding sleeve 5, a coal feeding reel 6, a coal feeding motor 7, an air feeding pipe 8, a combustion-supporting fan 9, an automatic controller 10, a fire bar 11, a vent hole 12, an automatic ash falling port 13, a smoke backflow prevention near pipe 14 and a furnace door 15.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.