CN210198060U - Furnace pressure monitoring device of high-temperature powder rotary kiln - Google Patents
Furnace pressure monitoring device of high-temperature powder rotary kiln Download PDFInfo
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- CN210198060U CN210198060U CN201920351078.6U CN201920351078U CN210198060U CN 210198060 U CN210198060 U CN 210198060U CN 201920351078 U CN201920351078 U CN 201920351078U CN 210198060 U CN210198060 U CN 210198060U
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Abstract
The utility model relates to a high temperature powder rotary kiln furnace pressure monitoring arrangement belongs to industrial automation engineering application technical field. The method comprises the following steps: the high-temperature powder rotary kiln is used for carrying out high-temperature rotary production on powder; one end of the pressure leading pipeline is connected with the high-temperature powder rotary kiln and is used for leading out gas in the high-temperature powder rotary kiln; the other end of the pressure leading pipeline is connected to a filter through a first interface and a second interface of a three-way valve in sequence, and the filter is connected to a pressure transmitter; the filter is used for filtering and removing dust in the gas, and the pressure transmitter is used for measuring the gas pressure; further comprising: and the air source is connected to the third interface of the three-way valve through the first manual valve.
Description
Technical Field
The utility model relates to a high temperature powder rotary kiln furnace pressure monitoring arrangement belongs to industrial automation engineering application technical field.
Background
The high-temperature powder rotary kiln is a high-temperature treatment device, also called a calcining furnace. According to the different energy sources, the energy sources can be divided into a coal-fired furnace, a gas-fired furnace, an oil-fired furnace and an electric heating furnace; the heating method is divided into two categories of direct heating and indirect heating; the operation mode is divided into two types of continuous operation and intermittent operation. The high-temperature powder rotary kiln is widely applied to the production process of special materials in the industries of petrochemical industry, inorganic chemical industry, metallurgy and the like. When the indirect heating continuous operation type kiln works, materials enter a furnace barrel through a furnace end feeder, an electric heating element or a fuel burner is arranged in a hearth, and the temperature of the hearth is controlled by adjusting the current of the electric heating element or the flame of the burner through an automatic control system, so that the materials are roasted at a certain temperature. The furnace barrel has a certain inclination angle, the material is roasted in the furnace barrel while moving forwards under the rotation of the furnace barrel, and the roasted material enters the next procedure from the discharge end. The roasting time of the material can be controlled by adjusting the rotating speed of the furnace barrel. The electric heating roasting furnace uses electricity as energy and mainly comprises a roasting furnace main body, an electric heating system, a heat preservation hearth, an automatic control system and the like. The gas-fired kiln mainly comprises a roasting furnace main body, a combustion device, a ventilation and smoke exhaust device and an automatic control system. Combustible gas such as fuel gas, artificial gas, liquefied petroleum gas and the like is used as fuel, the combustion is sufficient, the heat efficiency is high, and the fuel oil type kiln is similar to the fuel gas type kiln.
In the production and manufacturing process of powder products, two parameters of temperature and pressure are generally required to be focused, wherein the temperature has a mature solution and is generally solved by adopting an armored thermocouple. However, the problems of pipeline blockage and the like caused by high furnace temperature, powder and the like in the measurement of the pressure parameters are solved, and no good solution is provided.
Disclosure of Invention
The utility model aims at solving the problem that the pressure detection caused by the high pressure of gas and the high dust amount has difficulty when detecting the pressure of the rotary kiln furnace in the prior art, and providing a device for monitoring the furnace pressure of the high-temperature powder rotary kiln furnace.
A furnace pressure monitoring device of a high-temperature powder rotary kiln comprises:
the high-temperature powder rotary kiln is used for carrying out high-temperature rotary production on powder;
one end of the pressure leading pipeline is connected with the high-temperature powder rotary kiln and is used for leading out gas in the high-temperature powder rotary kiln;
the other end of the pressure leading pipeline is connected to a filter through a first interface and a second interface of a three-way valve in sequence, and the filter is connected to a pressure transmitter; the filter is used for filtering and removing dust in the gas, and the pressure transmitter is used for measuring the gas pressure;
further comprising: and the gas source is connected to the third interface of the three-way valve through the first manual valve, and high-pressure gas is stored in the gas source.
In one embodiment, the pressure guiding pipeline is a metal pipe, the length of the metal pipe is 1000-1500 mm, and the diameter of the metal pipe is 8-10 mm.
In one embodiment, the filter is a filter cloth, PP wool or a porous ceramic filter.
In one embodiment, the three-way valve is connected with the filter through a third valve, the lower part of the interception side of the filter is also connected to a material storage tank body through a second valve, and the material storage tank body is positioned below the second valve; and, the air supply is still connected to the storage tank body through first valve to the storage tank body still is connected to high temperature powder gyration kiln.
In one embodiment, a filter medium is arranged in the filter, an aggregate funnel is arranged below the interception side of the filter medium, the interception side of the filter medium is connected with the air inlet pipe, and the permeation side of the filter medium is connected with the purified air pipe; the collecting funnel is connected with the second valve.
In one embodiment, a cooler is also provided on the pressure introduction line.
In one embodiment, the cooler is a heat sink.
In one embodiment, the first valve, the second valve, and the third valve are automatic or manual valves.
Advantageous effects
The beneficial effects of the utility model are that, the high temperature air current is cooled down to the normal atmospheric temperature behind the pressure tube through drawing, has reduced the high temperature resistant requirement to components and parts, can conveniently realize pressure measurement by ordinary pressure transmitter, and powder filter purifies pressure signal source, and the protective gas regularly washes and draws the pressure tube and prevent to draw and press the pipe jam, and the device design is ingenious, and mechanical structure design is simple and easy, need not to propose special harsh (like high temperature resistant etc.) to components and parts.
Drawings
FIG. 1 is a block diagram of an apparatus for monitoring the furnace pressure of a rotary kiln for high-temperature powders;
FIG. 2 is a block diagram of another apparatus for monitoring the furnace pressure of a rotary kiln for high-temperature powders;
FIG. 3 is a partial block diagram of a filter and a second valve;
FIG. 4 is a block diagram of another apparatus for monitoring the furnace pressure of a rotary kiln for high-temperature powders;
wherein, 1, a high-temperature powder rotary kiln; 2. a pressure-leading pipeline; 3. a three-way valve; 4. a filter; 5. a pressure transmitter; 6. a first valve; 7. a gas source; 8. a second valve; 9. a material storage tank body; 10. a cooler; 11. a third valve; 12. an air inlet pipe; 13. purifying the air pipe; 14. a filter medium; 15. an aggregate funnel.
Detailed Description
The utility model discloses a pressure in slender drawing pipe, powder filter equipment with high temperature powder rotary kiln stove is cooled down, is filtered and then is conveyed to pressure transmitter.
The device comprises a pressure guiding pipe, a powder filtering device and a pressure measuring unit. In order to prevent the pressure pipe from being blocked by powder, a protective gas pipeline is introduced, protective gas with a certain pressure value is injected into the pressure pipe through the protective gas pipeline periodically, and the pressure pipe is flushed by air flow. Has the advantages that: the high-temperature air flow is cooled to normal temperature after flowing through the pressure guide pipe, the high-temperature resistant requirement on components is reduced, pressure measurement can be conveniently realized by a common pressure transmitter, a powder filter purifies a pressure signal source, and protective gas regularly washes the pressure guide pipe to prevent the pressure guide pipe from being blocked. The device has the advantages of ingenious conception, simple and easy mechanical structure design and no need of providing special rigor (such as high temperature resistance and the like) for components.
As shown in figure 1, the utility model discloses a high temperature powder rotary kiln furnace pressure monitoring arrangement who adopts.
The method comprises the following steps:
the high-temperature powder rotary kiln 1 is used for carrying out high-temperature rotary production on powder;
one end of the pressure leading pipeline 2 is connected to the high-temperature powder rotary kiln 1 and is used for leading out gas in the high-temperature powder rotary kiln 1;
the other end of the pressure guide pipeline 2 is connected to a filter 4 through a first interface and a second interface of a three-way valve 3 in sequence, and the filter 4 is connected to a pressure transmitter 5; the filter 3 is used for filtering and removing dust in the gas, and the pressure transmitter 5 is used for measuring the gas pressure;
further comprising: and the gas source 7 is connected to a third interface of the three-way valve 3 through the first manual valve 6, and high-pressure gas (air, nitrogen and the like) is stored in the gas source 7.
In the above apparatus, the pressure guiding pipeline 2 is a slender metal pipe (preferably made of stainless steel, the pipe length is preferably 1000-1500 mm, and the pipe diameter is preferably phi 8-10 mm) as a pressure guiding pipe, so as to realize the functions of using and guiding out the hearth pressure.
One end of the pressure guide pipeline 2 is inserted into the hearth, and the other end is connected with an interface of the three-way valve. When carrying out the measurement pressure, the inside gas of furnace is drawn forth to the pressure pipe way 1, and the high temperature air current is cooled down to the normal atmospheric temperature behind the pressure pipe, has reduced the high temperature resistant requirement to components and parts, and gaseous after passing through three-way valve 3, is filtered by filter 4, gets rid of the dust in the gas for gaseous can measure through pressure transmitter 5. The filter 4 used here may be a filter cloth, PP wool, or a porous ceramic filter.
Because at the in-process of drawing the pressure, the gas in the furnace can block up and draw pressure pipeline 1, consequently, when equipment moves to suitable time, opens first valve 6, because the high-pressure gas is equipped with in the air supply 7, gas can send into to the pipeline again through the third interface of three-way valve 3, blows the dust that draws in the pressure pipeline 1 back to furnace in, makes the dust in the middle of drawing the pressure pipeline get rid of on the one hand, and on the other hand makes the dust obtain retrieving, has reduced the waste. The first valve 6 used here may be controlled manually or automatically. The manual/automatic control valve connected in series with the protective gas pipeline realizes the timing opening/closing control of the protective gas to the pipeline flushing, and is preferably selected from a control valve (such as an electromagnetic valve). The pressure of the protective gas is preferably 0.1-0.2 MPa, the type of the gas is inert gas, preferably nitrogen, and the frequency of the opening/closing control of the first valve 6 is preferably 30 min/time-2 h/time.
In a modified embodiment, as shown in fig. 2, the three-way valve 3 is connected with the filter 4 through a third valve 11, the lower part of the interception side of the filter 4 is also connected with a storage tank 9 through a second valve 8, and the storage tank 9 is positioned below the second valve 8; and, the air supply 7 is still connected to the storage tank body 9 through first valve 6 to the storage tank body 9 still is connected to high temperature powder rotary kiln 1. Because the third valve 11 is kept open during the real-time detection process, the trapped side of the filter 4 can continuously collect the obtained dust, and after long-time operation, the dust can block the gas flow entering the pressure transmitter 5, thereby affecting the accuracy of measurement. After a certain amount of dust obtained in the filter 4 is accumulated, the third valve 11 is closed and the second valve 6 is opened, so that the dust falls into the storage tank 9, and the air source 7 is connected to the storage tank 9 through the first valve 6, so that when the air source 7 purges the pressure guide pipeline 2, the dust falling into the storage tank 9 in the filter 4 can be purged back to the high-temperature rotary kiln 1, on one hand, the performance of the filter 4 is prevented from being reduced, and on the other hand, the recycling of the powder is realized. The second valve 8 and the third valve 11 may also be controlled automatically or manually.
As shown in fig. 3, the specific structure of the filter 4 can be implemented in such a way that: a filter medium 14 is arranged in the filter 4, an aggregate funnel 15 is arranged below the interception side of the filter medium 14, the interception side of the filter medium 14 is connected with the air inlet pipe 12, and the permeation side of the filter medium 14 is connected with the purified air pipe 13; the collection funnel 15 is connected to the second valve 8. In operation, the inlet pipe 12 is connected to the second port of the three-way valve 3, and after gas enters, the powder is intercepted by the filter medium 14 (such as PP cotton) and falls into the collecting hopper 15 below, and after the gas is accumulated to a certain degree, the third valve 11 is closed and the second valve 8 is opened, so that the gas stops entering the filter 4, and the powder falls into the storage tank 9 from the collecting hopper 15.
As shown in fig. 4, in a modified embodiment, a cooler 10 is further disposed on the pressure guiding pipeline 2, and the cooler 10 may be a heat sink, which can accelerate cooling of the furnace gas in the pressure guiding pipeline 2 to achieve a normal operating temperature of the pressure transmitter 5.
Claims (8)
1. A furnace pressure monitoring device of a high-temperature powder rotary kiln is characterized by comprising:
the high-temperature powder rotary kiln (1) is used for carrying out high-temperature rotary production on powder;
one end of the pressure leading pipeline (2) is connected to the high-temperature powder rotary kiln (1) and is used for leading out gas in the high-temperature powder rotary kiln (1);
the other end of the pressure guide pipeline (2) is connected to a filter (4) through a first interface and a second interface of a three-way valve (3) in sequence, and the filter (4) is connected to a pressure transmitter (5); the filter (4) is used for filtering and removing dust in the gas, and the pressure transmitter (5) is used for measuring the gas pressure;
further comprising: and the gas source (7) is connected to a third interface of the three-way valve (3) through the first valve (6), and high-pressure gas is stored in the gas source (7).
2. The furnace pressure monitoring device of the high-temperature powder rotary kiln according to claim 1, wherein the pressure-leading pipeline (2) is a metal pipe, the length of the pipe is 1000-1500 mm, and the diameter of the pipe is 8-10 mm.
3. The furnace pressure monitoring device of the high-temperature powder rotary kiln according to claim 1, wherein the filter (4) is a filter cloth, PP cotton or a porous ceramic filter.
4. The furnace pressure monitoring device of the high-temperature powder rotary kiln furnace according to claim 1, characterized in that the three-way valve (3) is connected with the filter (4) through a third valve (11), the lower part of the interception side of the filter (4) is also connected with a storage tank body (9) through a second valve (8), and the storage tank body (9) is positioned below the second valve (8); and, air supply (7) still are connected to the storage tank body (9) through first valve (6) to the storage tank body (9) still are connected to high temperature powder rotary kiln (1).
5. The furnace pressure monitoring device of the high-temperature powder rotary kiln furnace as claimed in claim 1, wherein a filter medium (14) is arranged in the filter (4), an aggregate funnel (15) is arranged below the interception side of the filter medium (14), the interception side of the filter medium (14) is connected with the air inlet pipe (12), and the permeation side of the filter medium (14) is connected with the purified air pipe (13); the aggregate funnel (15) is connected with the second valve (8).
6. The furnace pressure monitoring device of the rotary kiln for high-temperature powder lot as claimed in claim 1, wherein a cooler (10) is further provided on the pressure introduction pipe (2).
7. Furnace pressure monitoring device of a rotary kiln for high-temperature powders according to claim 1, characterized in that the cooler (10) is a heat sink.
8. The furnace pressure monitoring device of the rotary kiln for high-temperature powders according to claim 1, characterized in that the first valve (6), the second valve (8) and the third valve (11) are automatic or manual valves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920351078.6U CN210198060U (en) | 2019-03-20 | 2019-03-20 | Furnace pressure monitoring device of high-temperature powder rotary kiln |
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| CN201920351078.6U CN210198060U (en) | 2019-03-20 | 2019-03-20 | Furnace pressure monitoring device of high-temperature powder rotary kiln |
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| CN210198060U true CN210198060U (en) | 2020-03-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029423A (en) * | 2021-02-26 | 2021-06-25 | 重庆国际复合材料股份有限公司 | Kiln pressure monitoring system for glass fiber kiln forming area |
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2019
- 2019-03-20 CN CN201920351078.6U patent/CN210198060U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029423A (en) * | 2021-02-26 | 2021-06-25 | 重庆国际复合材料股份有限公司 | Kiln pressure monitoring system for glass fiber kiln forming area |
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