CN210107365U

CN210107365U - Rice husk combustion furnace and combustion system

Info

Publication number: CN210107365U
Application number: CN201920751937.0U
Authority: CN
Inventors: 陈庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2020-02-21
Anticipated expiration: 2029-05-23

Abstract

The utility model discloses a rice husk fires burning furnace, including furnace body, the furnace body top is provided with fan and lift tobacco pipe, and the bottom is provided with ignition mechanism, fires the internal feed cylinder that is provided with of furnace, and the feed cylinder top is provided with the collection petticoat pipe, and lift tobacco pipe is connected with the collection petticoat pipe. The lifting smoke tube can drive the smoke collecting hood to move up and down, when the rice husk in the furnace is ignited, the smoke collecting hood covers the top of the charging barrel tightly, the sealing performance of the charging barrel is improved, the exhaust efficiency is high, the combustion efficiency and the combustion sufficiency of the rice husk are improved, and the time for preparing silicon dioxide is shortened. After firing the sintering beam, steerable lift tobacco pipe drives the collection petticoat pipe and rises, separates with the feed cylinder to take out the material in feed cylinder and the feed cylinder, should fire burning furnace and easily get and put the material, further improved silica production efficiency. Still disclose a rice husk combustion system, the lift flue intercommunication of each burning furnace in the system has realized the effect of unified exhaust, compares with traditional burner, and the air inlet is even, the burning is abundant, and the burning machining efficiency is high.

Description

Rice husk combustion furnace and combustion system

Technical Field

The utility model belongs to the technical field of mechanical equipment, a fire burning furnace and combustion system are fired for producing silica is related to, specifically speaking relates to a fire burning furnace and combustion system are fired to rice husk for producing silica.

Background

The rice husks of rice or other crops are wastes left after the fine processing of the crops, the rice yield is higher and higher along with the continuous progress of agricultural science, a large amount of rice husks or rice straws are generated every year, and the rice husks or the rice straws are directly abandoned, so that the environment is damaged, and resources are wasted. In order to solve the problem, researchers at home and abroad widely research the comprehensive utilization of the rice husks, but the current utilization approaches are still limited, and the rice husks are generally only used as feed, seedling culture and hilling or used as primary fuel, so that the economic benefit is not obvious, and some problems exist in the aspects of process and environmental pollution.

The rice hulls are rich in silicon dioxide, are mainly distributed on the outer surface inner layer of the rice hulls, have the particle size of about 50nm and mainly exist in a biomineralization mode and an amorphous state, the mass fraction of the silicon dioxide in the rice hulls is 3% -22%, the silicon dioxide is an important inorganic chemical product and can be widely applied to the fields of rubber, paint, plastics and the like, if the rice hulls are used as raw materials to prepare the silicon dioxide material, the agricultural wastes of the rice hulls can be fully utilized, the environmental pollution is reduced, the silicon dioxide material also becomes a renewable resource, and the silicon dioxide material has important economic value.

The preparation of the silicon dioxide by using the rice hulls as the raw material can be carried out by a liquid phase precipitation method or a combustion method, wherein the liquid phase precipitation method has the problems of serious pollution and large product granularity, and the traditional combustion equipment has the problems of uneven air inlet, insufficient combustion and low production efficiency.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model discloses it is above-mentioned technical problem that just solve to provide a production efficiency height, the abundant rice husk of burning fires burning furnace and combustion system.

In order to solve the technical problem, the utility model adopts the technical scheme that:

the utility model provides a rice husk fires burning furnace, it includes: the combustion furnace body, the combustion furnace body top is provided with fan and lift tobacco pipe, and the bottom is provided with ignition mechanism, the inside feed cylinder that is provided with of combustion furnace body, the feed cylinder top is provided with the collection petticoat pipe, the lift tobacco pipe with the collection petticoat pipe is connected.

Preferably, at least one air duct is arranged in the charging barrel, the air duct is arranged along the axial direction of the charging barrel, and the top end of the air duct is communicated with the fume collecting hood.

Preferably, the bottom of the charging barrel is also provided with an air guide cover, the air guide cover is arranged below the ignition mechanism, and the air guide cover is communicated with an air inlet pipe.

Preferably, the charging barrel comprises an upper charging barrel and a lower charging barrel, the upper charging barrel is connected with the lower charging barrel, and through holes for the wall of the lower charging barrel are distributed on the wall of the lower charging barrel; the charging barrel further comprises a bottom plate, bottom plate through holes are distributed in the bottom plate, and the bottom plate is detachably connected with the lower section charging barrel.

Preferably, the top of the charging barrel is provided with a mounting bracket for mounting the air guide tube, the top end of the air guide tube is mounted on the mounting bracket, and the bottom end of the air guide tube is a free end.

Preferably, the wall of the air duct is distributed with air duct through holes; the smoke collecting hood and the charging barrel are provided with a sealing ring therebetween.

Preferably, the device also comprises a temperature measuring mechanism, and one end of the temperature measuring mechanism is arranged in the charging barrel in a penetrating manner; the outer wall of the combustion furnace body is also provided with a control unit.

Preferably, the feeding and discharging mechanism is further included and used for taking and delivering the charging barrel.

Preferably, the ignition mechanism is an alcohol ignition groove or a heating rod.

Preferably, the device comprises at least two combustion furnaces, and the lifting smoke pipes of the combustion furnaces are communicated.

Compared with the prior art, the technical scheme of the utility model have following advantage:

(1) rice husk fire burning furnace, it includes furnace body, the furnace body top is provided with fan and lift tobacco pipe, and the bottom is provided with ignition mechanism, the inside feed cylinder that is provided with of furnace body, the feed cylinder top is provided with the collection petticoat pipe, lift tobacco pipe with the collection petticoat pipe is connected. The lifting smoke tube can drive the smoke collecting hood to move up and down, when the rice husk in the furnace is ignited, the smoke collecting hood covers the top of the charging barrel tightly, the sealing performance of the charging barrel is improved, the fan provides suction force to gas, the exhaust efficiency is high, the combustion efficiency and the combustion sufficiency of the rice husk are further improved, and the time for preparing silicon dioxide is shortened. After firing the sintering beam, steerable lift tobacco pipe drives the collection petticoat pipe and rises, separates with the feed cylinder to take out the material in feed cylinder and the feed cylinder, should fire burning furnace and easily get and put the material, further improved silica production efficiency.

(2) The rice husk fires burning furnace, be provided with an at least air duct in the feed cylinder, the air duct is followed the feed cylinder axial sets up, the top with collection petticoat pipe intercommunication. The air duct is communicated with the fume collecting hood, so that the penetration depth of suction force is improved, and the rice husk can be fully and rapidly combusted.

(3) The rice husk fires burning furnace, the feed cylinder bottom still is provided with the air guide cover, the air guide cover set up in ignition mechanism below, air guide cover and an air-supply line intercommunication. The air guide hood is used for enabling an external air source to symmetrically ascend from the center of the bottom of the charging barrel, and uneven combustion is prevented.

(4) Rice husk combustion system, including at least two the rice husk fires burning furnace, every rice husk fires burning furnace and independently admits air, and the lift flue intercommunication that respectively fires burning furnace has realized unified carminative effect promptly, with the unified exhaust of admitting air of a plurality of burning furnace of traditional burner system compare, admit air evenly to the burning is abundant, and the processing efficiency that burns is high.

Drawings

In order to make the content of the invention more clearly understood, the invention will now be described in further detail with reference to specific embodiments thereof, in conjunction with the accompanying drawings, in which

Fig. 1 is a schematic view of the internal structure of a rice hull combustion furnace according to an embodiment of the present invention;

fig. 2 is a schematic external structural view of a rice hull combustion furnace according to an embodiment of the present invention;

fig. 3 is a side view of a rice hull combustion furnace according to an embodiment of the present invention;

FIG. 4 is a schematic view of the inside of a charging barrel in a rice hull burning furnace according to an embodiment of the present invention;

fig. 5 is a schematic view of the rice hull burnup furnace and the feeding and discharging mechanism according to the embodiment of the present invention.

The reference numbers in the figures denote: 1-a combustion furnace body; 2-a fan; 3, lifting the smoke pipe; 301-a cylinder; 302-smoke tube; 4-a barrel; 5-smoke collecting hood; 6-furnace door; 7-a control unit; 8-hanging the bracket; 9-a gas-guide tube; 10-mounting a bracket; 11-a base plate; 12-a support rail; 13-a gas guiding hood; 14-an air inlet pipe; 15-an electrical heating rod; 16-a temperature measuring mechanism; 17-a vehicle body; 18-rear door; 19-push-pull rod.

Detailed Description

Example 1

This example provides a rice husk combustion furnace for burning rice husk to produce silica, as shown in fig. 1-3, comprising: burner block 1, burner block 1 is the cuboid shell, and the top is provided with a fan 2 and lift tobacco pipe 3, and the bottom is provided with ignition mechanism, be provided with the feed cylinder 4 that is used for the splendid attire rice husk material in the burn-up furnace body 1, feed cylinder 4 top is provided with collection petticoat pipe 5, collection petticoat pipe 5 with 3 fixed connection of lift tobacco pipe, just lift tobacco pipe 3 with collection petticoat pipe 5 intercommunication, collection petticoat pipe 5 is the funnel shaped structure of invering. Specifically, the lifting smoke tube 3 includes a cylinder 301 and a smoke tube 302, the cylinder 301 is used for driving the smoke tube 302 to move up and down and drive the smoke collecting hood 5 to move up and down, a sealing ring is arranged between the smoke collecting hood 5 and the charging barrel 4, when the smoke collecting hood 5 descends to the top of the charging barrel 4, the smoke collecting hood and the charging barrel are tightly combined, and when the fan 2 is started, the suction force to the inside of the charging barrel 4 is improved.

One side of the combustion furnace body 1 is provided with a furnace door 6 for taking and placing the charging barrel 4, the outer wall of the combustion furnace body 1 is also provided with a side wall heat insulation board, and a control unit 7 is arranged outside one side wall heat insulation board, in this embodiment, the control unit 7 is arranged on the side wall of the combustion furnace body adjacent to the furnace door 6, the control unit is a PLC control box, the front surface of the control box is provided with a touch screen, the top of the control box is provided with an alarm lamp, when the combustion furnace is abnormal, the alarm lamp sends out an alarm signal, the PLC control box is used for controlling and displaying temperature detection, air intake and exhaust, ignition control, automatic flow control and the like, information displayed by the touch screen comprises parameters such as state icons of each component, temperature, rotating speed, air pressure and: the temperature control target value is set (multiple groups along with time), the air valve opening parameter (associated with temperature difference), the fan rotating speed and the reasonable range of the monitoring parameter are set, and an alarm picture is displayed: alarm state display, fault diagnosis prompt, alarm contact button and alarm record display. As shown in fig. 3, the control unit is suspended outside the burner block 1 by a suspension bracket 8.

For improving the gas mobility in the feed cylinder, be provided with air duct 9 in the feed cylinder, in this embodiment, air duct 9 is 5, and its installing support 10 of installing in the feed cylinder top, installing support 10 is for following the radial cross support that sets up of feed cylinder top surface (as shown in fig. 4), two spinal branch framves mutually perpendicular set up, this embodiment 5 air duct 9 arrange the mode and do: one air duct 9 is arranged at the intersection of the two brackets and is a central air duct, and the other four air ducts are symmetrically arranged on two sides of the central air duct in pairs. In order to improve the installation stability of the air duct 9, a cross-shaped installation bracket is also arranged at the middle part in the charging barrel 4. The pipe wall of the air duct 9 is distributed with air duct through holes with the diameter of 2mm, the top end and the middle part of the air duct 9 are connected with the mounting bracket 9, and the bottom end is a suspended free end.

The charging barrel 4 comprises an upper section charging barrel close to the smoke collecting hood 5 and a lower section charging barrel connected with the upper section charging barrel, the wall of the lower section charging barrel is provided with a barrel wall through hole with the diameter of 2mm, the bottom of the charging barrel 4 is provided with a detachable bottom plate 11, the bottom plate 11 is provided with a bottom plate through hole with the diameter of 2mm, the bottom plate 11 can be drawn out from a furnace door 6 of the combustion furnace body 1, the area of the bottom plate 11 is larger than the bottom area of the charging barrel 4, and one end of the bottom plate is arc-shaped and the other end of the bottom plate is rectangular, and is.

For the homogeneity of air current in the further feed cylinder that improves, the hypomere feed cylinder is close to one side outside of furnace gate 6 is provided with a baffle, the cross-sectional drawing of baffle is semi-circular, 15 mm's space has between baffle and the hypomere feed cylinder, the space between baffle and the feed cylinder 4 is the same with the distance between 1 back wall of burner body and the feed cylinder 4 to make feed cylinder 4 front and back air current even, fan 2 produces the draft and rises to upper segment feed cylinder and collection petticoat pipe 5 by bottom plate, hypomere feed cylinder and air duct 9, and the air current can pierce through whole feed cylinder 4 fast.

The bottom in the burner body 1, the feed cylinder below is provided with the support rail 12 with furnace gate 4 vertical setting (when furnace gate 4 is closed), and support rail 12 plays the effect of supporting and for feed cylinder 4 business turn over burnup furnace body 1 direction, support rail 12 with still be provided with a backup pad between the feed cylinder 4.

The feed cylinder 4 below still is provided with a air guide cover 13, air guide cover 13 is the infundibulate structure, and its bottom is connected in the one end of an air-supply line 14, the other end of air-supply line 14 set up in the combustion furnace body 1 outside, the air inlet department of air-supply line is provided with the air inlet valve that is used for adjusting the air current size.

In this embodiment, the ignition mechanism is preferably an electric heating rod 15, the position that the feed cylinder corresponds to burner body 1 sets up the hole site of seting up the business turn over of power supply heating rod 15, and electric heating rod 15 is preferably 2, after electric heating rod deepened the feed cylinder, two heating rod symmetries set up in feed cylinder center both sides.

For the combustion temperature in the real-time supervision feed cylinder, still include temperature measurement mechanism 16, temperature measurement mechanism 16 is the temperature measurement pole, the temperature measurement pole with the control unit signal connection, temperature measurement pole one end is deepened the inside setting of feed cylinder, in this embodiment, the temperature measurement pole is preferred 3, set up respectively in feed cylinder upper portion, middle part and lower part detect the temperature of three different positions, correspondingly, the hole site that can supply the temperature measurement pole business turn over is seted up to the relevant position of furnace body 1 and feed cylinder 4.

Two interfaces about 3 upper ends of lift tobacco pipe are seted up, one interface connection in fan 2, another interface connection has a negative pressure table, and 3 tops of lift tobacco pipe are provided with a water bowl that is used for thermal-insulated to the cylinder. The fan 2 is of a high-pressure heat-resistant type, and can work at the maximum temperature of 300 ℃, 1.5kw, the maximum negative pressure of 17kpa and the maximum flow of 192 cubic meters per hour (3.2 m)³/min)。

Furthermore, for flexibly conveying the charging barrel, the charging and discharging device also comprises a charging and discharging mechanism, please refer to fig. 5, the charging and discharging mechanism is a feeding cart, the feeding cart comprises a cuboid cart body 17, a space capable of containing the charging barrel 4 is arranged in the cart body 17, a front door is arranged on one side of the cart body 17 opposite to the furnace door 4, the height of the inner bottom surface of the cart body is the same as that of the support rail 12, a rear door 18 is arranged below the side surface of the cart body opposite to the front door, a handle is arranged on the lower charging barrel, when the charging barrel needs to be taken out from the combustion furnace body 1, the feeding cart is parked on the side of the furnace door, the front door and the rear door 18 are opened, and the handle on the charging barrel 4 is pulled through a push-pull rod 19 so. In order to enable the combustion furnace to be accurately aligned with the feeding car, the bottom of the combustion furnace body 1 is provided with an alignment block, an alignment clamping groove is correspondingly formed in the front door side of the feeding car, and when the feeding car is taken and fed, the alignment block is clamped in the alignment clamping groove to achieve accurate positioning, so that the feeding car is prevented from deflecting.

In addition, the top of the feeding car is provided with a top plate, the top plate is detachably connected with the car body, rice hull materials can be filled into the charging barrel after the top plate is detached, a lifting lug is further arranged at the top of the charging barrel, the charging barrel can be taken out from the bottom plate 11 of the charging barrel after the charging barrel is lifted in the feeding car, and discharging is achieved.

Example 2

This embodiment provides a rice hull combustion furnace, which has a structure substantially the same as that of embodiment 1, except that the ignition mechanism is an alcohol ignition groove, the alcohol ignition groove is disposed below the charging barrel, the alcohol ignition groove can accommodate 4 solid alcohol blocks, and after the alcohol blocks are ignited, flame can ignite rice hull materials in the charging barrel through a bottom plate hole at the bottom of the charging barrel.

Example 3

The embodiment provides a rice husk combustion system, it includes a plurality of the rice husk fires burning furnace, and each rice husk fires the lifting pipe intercommunication each other of burning furnace, has realized that individual fires independent air intake of burning furnace, unified carminative effect, has prevented that the rice husk that admits air in unison from burning inhomogeneous problem, has shortened combustion time, has improved silica production efficiency.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A rice husk burning furnace comprising: the combustion furnace body, the combustion furnace body top is provided with fan and lift tobacco pipe, and the bottom is provided with ignition mechanism, the inside feed cylinder that is provided with of combustion furnace body, the feed cylinder top is provided with the collection petticoat pipe, the lift tobacco pipe with the collection petticoat pipe is connected.

2. A rice hull combustion furnace according to claim 1, wherein at least one gas duct is provided in said barrel, said gas duct being disposed axially of said barrel and having a top end communicating with said fume collection hood.

3. The rice hull combustion furnace as claimed in claim 2, wherein said barrel bottom is further provided with an air guide hood, said air guide hood being disposed below said ignition mechanism, said air guide hood being in communication with an air inlet duct.

4. The rice hull combustion furnace according to claim 3, wherein the charging barrel comprises an upper section charging barrel and a lower section charging barrel, the upper section charging barrel is connected with the lower section charging barrel, and through holes for the wall of the lower section charging barrel are distributed on the wall of the lower section charging barrel; the charging barrel further comprises a bottom plate, bottom plate through holes are distributed in the bottom plate, and the bottom plate is detachably connected with the lower section charging barrel.

5. A rice husk burning furnace according to any one of claims 1 to 4 wherein said barrel is provided at the top with a mounting bracket for mounting an air duct, said air duct being mounted at the top end to said mounting bracket and at the bottom end being a free end.

6. The rice hull combustion furnace as claimed in claim 5, wherein the wall of the gas duct is provided with gas duct through holes; the smoke collecting hood and the charging barrel are provided with a sealing ring therebetween.

7. The rice hull combustion furnace according to claim 6, further comprising a temperature measuring mechanism, wherein one end of the temperature measuring mechanism is arranged to penetrate into the charging barrel; the outer wall of the combustion furnace body is also provided with a control unit.

8. The rice hull combustion furnace as claimed in claim 7, further comprising a loading and unloading mechanism for taking and delivering said barrel.

9. A rice hull burning furnace according to claim 8, wherein said ignition means is an alcohol ignition slot or a heating rod.

10. A rice husk burning system comprising at least two burners as claimed in any one of claims 1 to 9, the lifting flue tubes of each burner being in communication.