CN210569668U - Dual-purpose ore sand drying-machine of application electrical heating and gas heating - Google Patents
Dual-purpose ore sand drying-machine of application electrical heating and gas heating Download PDFInfo
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- CN210569668U CN210569668U CN201920739155.5U CN201920739155U CN210569668U CN 210569668 U CN210569668 U CN 210569668U CN 201920739155 U CN201920739155 U CN 201920739155U CN 210569668 U CN210569668 U CN 210569668U
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Abstract
The utility model discloses a dual-purpose ore sand dryer using electric heating and gas heating, which comprises a feeding bin, a barrel, a discharging bin, an electric heating system, a gas heating system and a control system; the electric heating fan is arranged at the discharge end of the cylinder body and is communicated with the pipeline; the gas spray pipe extends into the cylinder from the discharge end of the cylinder; a gas control valve is arranged on the gas pipe; the controller is respectively connected with the temperature sensor, the fuel gas control valve and the electric heating fan control valve. When the utility model is used, gas heating is adopted during the peak period of electricity price, and electric heating is adopted during the low-ebb period of electricity price at night, so that the comprehensive use and drying cost can be controlled to be lowest, and the use is flexible; the two sets of heating systems can be operated in a cooperation mode or independently, and the shutdown phenomenon caused by power failure or gas stop can be avoided.
Description
Technical Field
The utility model relates to a material drying equipment especially relates to an use electrical heating and dual-purpose type ore sand drying-machine of gas heating.
Background
At present, the drying of the ore sand generally adopts a single-cylinder type rotary dryer with a single heat source. As shown in fig. 1, the main body of the prior art single-drum type rotary dryer is a cylinder 2 which is slightly inclined and can rotate, and a feeding bin 1 is arranged at the inclined upper end of the cylinder 2; the lower end of the slope is provided with a discharging bin 3. The working principle is as follows: wet material adds from 1 upper portion in feeding storehouse, when 2 insides through the drum title, carries out effectual contact and is dried with hot-blast or heating wall through in the cylinder 2, and the product after the drying is collected from ejection of compact storehouse 3, and in the drying process, the material removes to lower one end from higher one section with the help of the slow rotation of 2 section of thick bamboo walls of cylinder under the effect of gravity. The inner wall of the cylinder 2 is provided with a forward shoveling plate 4 which continuously shovels and sprays the materials to enlarge the contact surface of the materials, so as to improve the drying speed and promote the materials to move forward. The heat carrier used in the drying process is typically hot air, flue gas, or the like.
The heating mode of the single-drum rotary dryer comprises an internal heating mode and an external heating mode. The internal heating type is a hot air drying type, and adopts methods of electric heating, material burning, coal burning, oil burning, gas burning and the like to obtain hot air, so that the hot air and the materials enter a cylinder together, and the hot air is used for drying the materials and taking away moisture in the materials. The external heating type is barrel heating type, wherein the barrel is heated by using a method of burning materials, or burning coal, oil, gas and the like, and then materials in the barrel are dried. For the water-containing ore with a certain thickness and a larger density of particles about 150 meshes, the barrel heating type is still a common drying mode. However, the gas emission is generated no matter the material is burned, or the coal, the oil and the gas are burned, which brings environmental problems. The cost for obtaining the same heat quantity is about 50 percent higher than that of fuel gas by using electricity for heating based on the price of common industrial electricity, and certain disadvantages exist. But the electric heating does not generate emission, and has great significance for enterprises with high environmental protection requirements or areas/periods with low electricity price. The common electric heating mode is commonly found in other tunnel type, flat plate type and kiln type drying equipment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the problem that prior art exists, providing a peak gas, the low ebb electricity consumption, low use cost uses electrical heating and gas heating's dual-purpose type ore sand drying-machine.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a dual-purpose ore sand dryer applying electric heating and gas heating comprises a feeding bin, a barrel, a discharging bin, an electric heating system, a gas heating system and a control system; the inclined upper end of the cylinder body is provided with a feeding hole, and the inclined lower end of the cylinder body is provided with a discharging hole; the material shoveling plates are arranged in a plurality of rows at intervals along the axial direction of the cylinder body, and the material shoveling plates in the same row are provided with a plurality of material shoveling plates; the electric heating system mainly comprises an electric heating fan, an electric heating fan air outlet and an electric heating fan control valve; the gas heating system comprises a gas pipe and a gas spray pipe, and the gas pipe is connected with the gas spray pipe; the control system mainly comprises a controller and a temperature sensor; the electric heating fan is arranged at the discharge end of the barrel and is communicated with the pipeline, the pipeline extends into the discharge end of the barrel, the free end of the pipeline is an air outlet of the electric heating fan, and the electric heating fan is also connected with a control valve of the electric heating fan; the gas spray pipe extends into the cylinder from the discharge end of the cylinder; a gas control valve is arranged on the gas pipe; the controller is respectively connected with the temperature sensor, the fuel gas control valve and the electric heating fan control valve; the temperature sensors are arranged on the feeding bin and the discharging bin respectively.
In order to further realize the purpose of the utility model, preferably, the spoiler is arranged between two axially adjacent material shoveling plates in the middle of the cylinder body.
Preferably, the number of the spoilers is 2-4.
Preferably, the spoiler is a three-blade spoiler; the three-blade spoiler is formed by arranging three fan-shaped plates at intervals.
Preferably, two adjacent fan-shaped plates of the three-blade spoiler are axially staggered by 60 degrees.
Preferably, the air outlet of the electric heating fan and the horizontal axial direction of the cylinder body form an angle of 20-30 degrees and are arranged in a downward inclined mode.
Preferably, the free end of the gas nozzle and the horizontal axial direction of the cylinder body form an angle of 20-30 degrees and are arranged in a downward inclined mode.
Preferably, the length of the material shoveling plate is 0.5-0.6 m.
Preferably, the controller adopts a PLC controller.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the utility model discloses the trilobal spoiler of addding in the barrel has changed hot-air's flow field, increases the heat exchange efficiency of hot-air and material.
2) The utility model discloses control feeding storehouse entry steam exhaust temperature can reduce the heat that steam was taken away between 80 ℃ to 95 ℃, improves energy utilization.
3) The air outlet of the electric heating fan of the utility model slightly inclines downwards and forms an angle of 20-30 degrees with the horizontal axial direction of the cylinder body, which is beneficial to heating the material positioned at the lower part of the cylinder body.
4) The utility model discloses electric fan sets up the valve, is off-state when the exclusive use gas heating, reduces the heat loss.
5) The utility model discloses the trilobal spoiler is located the barrel middle part, sets up in being listed as between the material flight, and the trilobal spoiler interval of difference is listed as or is listed as the material flight and places, and two adjacent trilobal spoilers are placed along the axial 60 degrees angles of staggering, make the hot air flow field of original through type produce the tortuous, increase the heat exchange efficiency of hot-air and material.
6) The utility model discloses during the application, at the electricity price peak period, adopt the gas heating, electricity price low ebb period at night adopts the electrical heating, uses comprehensively that the stoving cost can be controlled to minimumly, uses in a flexible way moreover.
7) The utility model discloses but two sets of heating systems cooperation operation, also can independent operation, can avoid because of the shut down phenomenon that power failure or stop gas brought.
8) The utility model discloses when two sets of heating system move in coordination, the material bed ectonexine is heated simultaneously, and drying efficiency is higher.
Drawings
FIG. 1 is a schematic view of a prior art single-drum rotary dryer;
fig. 2 is the structure schematic diagram of the ore sand dryer of the utility model.
Fig. 3 is a schematic shape diagram of a three-blade spoiler.
The figures show that: the device comprises a feeding bin 1, a barrel 2, a discharging bin 3, a material shoveling plate 4, a gas pipe 5, an electric heating fan air outlet 6, a gas spray pipe 7, a controller 8, a temperature sensor 9, an electric heating fan 10, a spoiler 11 and an electric heating fan control valve 12.
Detailed Description
For better understanding of the present invention, the following description of the present invention is made with reference to the accompanying drawings, but the present invention is not limited thereto.
As shown in fig. 2, a dual-purpose ore sand dryer using electric heating and gas heating comprises a feeding bin 1, a barrel 2, a discharging bin 3, an electric heating system, a gas heating system and a control system; the inclined upper end of the cylinder body 2 is provided with a feeding hole 1, and the inclined lower end is provided with a discharging hole 3; the material shoveling plates 4 are arranged in a plurality of rows at intervals along the axial direction of the cylinder 2, and the material shoveling plates 4 in the same row are provided with a plurality of plates; the electric heating system mainly comprises an electric heating fan 10, an electric heating fan air outlet 6 and an electric heating fan control valve 12; the gas heating system comprises a gas pipe 5 and a gas spray pipe 7, and the gas pipe 5 is connected with the gas spray pipe 7; the control system mainly comprises a controller 8 and a temperature sensor 9; the electric heating fan 10 is arranged at the discharge end of the barrel 2, the electric heating fan 10 is communicated with a pipeline, the pipeline extends into the discharge end of the barrel, the free end of the pipeline is an electric heating fan air outlet 6, and the electric heating fan 10 is also connected with an electric heating fan control valve 12; the gas spray pipe 7 extends into the cylinder 2 from the discharge end of the cylinder 2; a gas control valve is arranged on the gas pipe 5; the controller 8 is respectively connected with the temperature sensor 9, the fuel gas control valve and the electric heating fan control valve 12; the temperature sensors are arranged on the feeding bin 1 and the discharging bin 3 respectively.
Preferably, the utility model is provided with a spoiler 11 between two axially adjacent material shoveling plates in the middle of the cylinder body; the number of spoilers 11 is preferably 2-4; the spoiler 11 is preferably a three-bladed spoiler; the shape of the three-blade spoiler is shown in fig. 3, and the three-blade spoiler is formed by arranging three fan-shaped plates at intervals, and two adjacent fan-shaped plates are arranged by staggering an angle of 60 degrees along the axial direction; the arrangement of the spoiler makes the original straight-through type hot air flow field generate tortuosity, and increases the heat exchange efficiency of hot air and materials.
Preferably, the air outlet 6 of the electric heating fan and the horizontal axial direction of the cylinder body are inclined downwards at an angle of 20-30 degrees, which is beneficial to heating materials at the lower part of the cylinder body.
Preferably, the free end of the gas nozzle 7 is inclined downwards at an angle of 20-30 degrees with the horizontal axial direction of the cylinder.
Preferably, the length of the material shoveling plate 4 is 0.5-0.6 m.
Preferably, the controller 8 is a PLC controller, which coordinates the operation of the two heating systems, or may use some of them separately. The control system controls the discharge temperature of the steam at the inlet of the storage bin to be between 80 and 95 ℃.
The electric heating system of the utility model mainly comprises an electric heating fan 10, an electric heating fan air outlet 6 and an electric heating fan control valve 12. An outlet of the electric heating fan 10 is provided with an electric heating fan control valve 12 which is in a closed state when the electric heating fan is heated by using fuel gas alone, so that heat loss is reduced.
The utility model discloses the three-bladed spoiler that the dual-purpose type ore sand drying-machine barrel of application electrical heating and gas heating was add has changed the flow field of hot-air, increases the heat exchange efficiency of hot-air and material.
The utility model discloses the dual-purpose type ore sand drying-machine of application electrical heating and gas heating control feeding storehouse 1 entry steam exhaust temperature can reduce the heat that steam was taken away between 80 ℃ to 95 ℃, improves energy utilization.
The utility model discloses the dual-purpose type ore sand drying-machine of application electrical heating and gas heating adopts the gas heating in the electricity price peak period, and electricity price low ebb period adopts the electrical heating night, and it is minimum to synthesize to use the stoving cost.
The utility model discloses the dual-purpose type ore sand drying-machine of application electrical heating and gas heating is equipped with two sets of heating system, but the cooperation operation, also can independent operation, can avoid because of the shut down phenomenon that has a power failure or stop gas and bring. When the two sets of heating systems operate cooperatively, the inner layer and the outer layer of the material layer are heated simultaneously, and the drying efficiency is high.
Claims (9)
1. A dual-purpose ore sand dryer applying electric heating and gas heating comprises a feeding bin, a barrel, a discharging bin, an electric heating system, a gas heating system and a control system; the inclined upper end of the cylinder body is provided with a feeding hole, and the inclined lower end of the cylinder body is provided with a discharging hole; the material shoveling plates are arranged in a plurality of rows at intervals along the axial direction of the cylinder body, and the material shoveling plates in the same row are provided with a plurality of material shoveling plates; the electric heating system is characterized by mainly comprising an electric heating fan, an electric heating fan air outlet and an electric heating fan control valve; the gas heating system comprises a gas pipe and a gas spray pipe, and the gas pipe is connected with the gas spray pipe; the control system mainly comprises a controller and a temperature sensor; the electric heating fan is arranged at the discharge end of the barrel and is communicated with the pipeline, the pipeline extends into the discharge end of the barrel, the free end of the pipeline is an air outlet of the electric heating fan, and the electric heating fan is also connected with a control valve of the electric heating fan; the gas spray pipe extends into the cylinder from the discharge end of the cylinder; a gas control valve is arranged on the gas pipe; the controller is respectively connected with the temperature sensor, the fuel gas control valve and the electric heating fan control valve; the temperature sensors are arranged on the feeding bin and the discharging bin respectively.
2. The dual-purpose ore sand dryer using electric heating and gas heating as claimed in claim 1, wherein the spoiler is disposed between two material shoveling plates axially adjacent to each other in the middle of the cylinder.
3. The dual-purpose type ore sand dryer using electric heating and gas heating as claimed in claim 2, wherein the number of said spoilers is 2-4.
4. The dual-purpose type ore sand dryer using electric heating and gas heating as claimed in claim 2, wherein the spoiler is a three-blade type spoiler; the three-blade spoiler is formed by arranging three fan-shaped plates at intervals.
5. The dual-purpose type ore sand dryer using electric heating and gas heating as claimed in claim 4, wherein two adjacent fan-shaped plates of the three-blade type spoiler are axially staggered by an angle of 60 degrees.
6. The dual-purpose ore sand dryer using electric heating and gas heating as claimed in claim 1, wherein the air outlet of the electric heating blower is inclined downward at an angle of 20-30 degrees with the horizontal axis of the barrel.
7. The dual-purpose ore sand dryer using electric heating and gas heating as claimed in claim 1, wherein the free end of the gas nozzle is inclined downward at an angle of 20-30 degrees with the horizontal axis of the barrel.
8. The dual-purpose ore sand dryer using electric heating and gas heating as claimed in claim 1, wherein the length of the material shoveling plate is 0.5-0.6 m.
9. The dual-purpose ore sand dryer using electric heating and gas heating as claimed in claim 1, wherein the controller is a PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920739155.5U CN210569668U (en) | 2019-05-22 | 2019-05-22 | Dual-purpose ore sand drying-machine of application electrical heating and gas heating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920739155.5U CN210569668U (en) | 2019-05-22 | 2019-05-22 | Dual-purpose ore sand drying-machine of application electrical heating and gas heating |
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| CN210569668U true CN210569668U (en) | 2020-05-19 |
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| CN201920739155.5U Active CN210569668U (en) | 2019-05-22 | 2019-05-22 | Dual-purpose ore sand drying-machine of application electrical heating and gas heating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114195475A (en) * | 2022-01-06 | 2022-03-18 | 安徽合信大环保科技有限公司 | Preparation method of high-performance environment-friendly gypsum |
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2019
- 2019-05-22 CN CN201920739155.5U patent/CN210569668U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114195475A (en) * | 2022-01-06 | 2022-03-18 | 安徽合信大环保科技有限公司 | Preparation method of high-performance environment-friendly gypsum |
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