Roller kiln with single-point control device for tunnel kiln use

Abstract

The utility model discloses a kind of roller hearth kiln with single-point control device of tunnel kiln use, including several fire gun pipelines, the side of several fire gun pipelines is equipped with conveying pipeline, control device ontology is fixedly installed between several fire gun pipelines and several conveying pipelines, several control device ontologies include temperature needle, executor, proportional valve and temperature control table, a kind of roller hearth kiln with single-point control device of tunnel kiln use of the utility model, the control device is composed of temperature needle, executor, proportional valve and temperature control table, it is directly installed on each combustion engine, compared with the mode of previous entire fire gun subarea adjustment, after each combustion engine is configured single-point control system, the temperature of entire area can be regulated, a certain fire gun is separately controlled to heat up and cool down, avoid the phenomenon that temperature on combustion engine and demand do not match when local cooling or local high temperature is needed, improve the qualified rate of tunnel kiln or roller hearth kiln to product after processing.

Description

Technical Field

[0001] This utility model relates to the field of control device technology, specifically a roller kiln with a single-point control device for use in tunnel kilns. Background Technology

[0002] A tunnel kiln is a type of industrial kiln mainly used for heating operations in industries such as metallurgy and building materials. Due to its simple structure, small size, high thermal efficiency, and energy saving, it is widely used in the metallurgical industry. A tunnel kiln uses an arched or horseshoe-shaped dome constructed of refractory bricks or clay bricks. The top of the dome has several openings called fire ports and channels called fire channels. Baffles and support roller conveyors are installed on both sides of the tunnel to facilitate loading and unloading. Each tunnel section is 1.5–2 meters wide, and its length is determined according to needs. When multiple sections are used in series, they are connected proportionally. Each tunnel section contains a combustion chamber and fuel nozzles. The combustion chamber houses the flame tube and is equipped with air caps and ducts. During operation, a control device is required to control the temperature of the burners connected to the tunnel kiln.

[0003] Roller kilns can lift high-temperature charcoal out of the kiln, shortening cooling time and production cycle, thereby increasing the monthly output per kiln and reducing the number of kilns, floor space, and investment. The carbonization cycle of roller kilns is 3-4 days, significantly shortening the carbonization time and thus significantly increasing the monthly output per kiln, while also reducing the amount of carbonization and increasing the carbon yield. The mechanical loading and unloading of roller kilns saves labor, improves efficiency, and saves time. When using roller kilns, a control device is required to control the temperature of the burners connected to the roller kiln.

[0004] However, traditional control devices have the following drawbacks:

[0005] Traditional control devices directly control the overall temperature of the burner connected to the entire flame tube. This can easily lead to a mismatch between the burner temperature and the demand when local cooling or high temperature is required, reducing the pass rate of processed products in tunnel kilns or roller kilns. Utility Model Content

[0006] The purpose of this utility model is to provide a roller kiln with a single-point control device for use in tunnel kilns, so as to solve the problem mentioned in the background art that the traditional control device directly controls the overall temperature of the burner connected to the entire flame tube. This can easily lead to a mismatch between the temperature on the burner and the demand when local cooling or local high temperature is required, which reduces the pass rate of products processed by tunnel kilns or roller kilns.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a roller kiln with a single-point control device for use in tunnel kilns, comprising a plurality of lance pipes, each lance pipe having a conveying pipe on one side, and a control device body fixedly installed between each lance pipe and the conveying pipes. Each control device body includes a temperature needle, an actuator, a proportional valve, and a temperature controller. The temperature needle is connected to the temperature controller, and the proportional valve and temperature controller are both connected to the actuator. A first mounting assembly is fixedly installed at the bottom of the temperature needle, and a second mounting assembly is installed on the surface of the temperature controller. The first mounting assembly includes a fixed platform and a mounting platform. Height grooves are formed on both sides of the inner wall of the fixed platform, and height blocks are slidably connected inside the two height grooves. A pusher platform is fixedly installed between the two height blocks. Length shells are fixedly installed on both sides of the top of the pusher platform, and length rods are slidably connected to the tops of the two length shells. The tops of the two length rods are respectively fixedly connected to both sides of the bottom of the mounting platform.

[0008] Preferably, each of the four corners of the bottom of the fixed platform is fixedly equipped with a fixing post, and a push screw is threadedly connected to the middle of the bottom of the fixed platform. The top end of the push screw is rotatably connected to the middle of the bottom of the push platform. Each of the two height blocks has a connecting spring fixedly installed at its bottom end, and the bottom ends of the two connecting springs are respectively fixedly connected to the bottom ends of the inner walls of the two height grooves. Each of the two length shells has a locking screw threadedly connected to its surface, and the two length shells are respectively fixedly connected to the two length rods through the locking screws. When the user rotates the push screw, the thread on the surface of the push screw matches the thread on the inner wall of the fixed platform, so the push screw rotates and rises relative to the fixed platform. The push screw pushes the push platform from the bottom to adjust the height of the mounting platform. The user slides the length rod along the length shell to make a secondary adjustment to the height of the mounting platform, thereby indirectly adjusting the installation height of the temperature needle.

[0009] Preferably, the top of the mounting platform is fixedly connected to the temperature needle, and the bottom of each of the four fixing columns is fixedly connected to the side of the temperature controller facing the temperature. The first mounting component adjusts the position of the temperature needle through the mounting platform.

[0010] Preferably, the second mounting assembly includes a clamping shell and a first clamping plate. One side of the top of the clamping shell is fixedly connected to the bottom of the first clamping plate. A clamping groove is provided on the other side of the top of the clamping shell. The second clamping plate is slidably connected inside the clamping groove. A clamping cylinder is fixedly mounted on the surface of the clamping shell. The movable end of the clamping cylinder is fixedly connected to the side of the second clamping plate opposite to it. Perforated positioning plates are fixedly mounted on both sides of the clamping shell. The side of the first clamping plate near the second clamping plate and the side of the second clamping plate near the first clamping plate are respectively in contact with the two sides of the temperature controller. The user screws the screw through the perforated positioning plates to install the second mounting assembly at the place of use. The clamping cylinder performs a telescopic movement, pushing the second clamping plate from one side. The first clamping plate and the second clamping plate cooperate to clamp and fix the temperature controller.

[0011] Preferably, one side of the actuator is fixedly connected to one end of the gun pipe. The actuator receives signals from the controller or the upper-level system and converts them into mechanical motion to control whether the gun pipe transmits gas.

[0012] Preferably, one side of the proportional valve is connected to the middle of the lance pipe, and the sensing end of the temperature needle is inserted into the delivery pipe to sense the temperature in the delivery pipe in real time. The proportional valve controls the flow rate and pressure of the high-temperature hot gas output from the lance pipe.

[0013] Preferably, the surface of the temperature controller is fixedly connected to the middle of the conveying pipeline, and the temperature controller is installed on the conveying pipeline to regulate the temperature inside the conveying pipeline in real time.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The control device consists of a temperature needle, actuator, proportional valve and temperature controller. It is directly installed on each burner. Compared with the previous method of adjusting the temperature of the entire burner in zones, the configuration of a single-point control system for each burner can not only regulate the temperature of the entire area, but also control the heating and cooling of a single burner. This avoids the phenomenon that the temperature on the burner does not match the demand when local cooling or local high temperature is required, and improves the pass rate of products after processing in tunnel kilns or roller kilns.

[0016] 2. After installing this control device, the temperature difference inside the kiln is smaller, and the temperature can be finely and precisely controlled. Within the same zone, the lance that needs to be heated can be controlled individually, eliminating the need to heat the entire zone, thus saving gas. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a partial view of the present invention;

[0019] Figure 3 This is a connection diagram of the temperature needle and the first mounting component of this utility model;

[0020] Figure 4 This is a cross-sectional view of the first mounting component of this utility model;

[0021] Figure 5 This is a connection diagram of the temperature controller and the second mounting component of this utility model;

[0022] Figure 6 This is a side view of the second mounting component of this utility model.

[0023] In the diagram: 1. Control device body; 2. Temperature needle; 3. Actuator; 4. Proportional valve; 5. Temperature controller; 6. Fire gun pipe; 7. Delivery pipe; 8. First mounting assembly; 801. Mounting platform; 802. Length rod; 803. Length shell; 804. Locking screw; 805. Fixing platform; 806. Fixing column; 807. Push screw; 808. Pushing platform; 809. Connecting spring; 810. Height block; 811. Height groove; 9. Second mounting assembly; 91. Clamping shell; 92. Positioning plate with holes; 93. First clamping plate; 94. Second clamping plate; 95. Clamping groove; 96. Clamping cylinder. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Please see Figure 1-6 This utility model provides a roller kiln with a single-point control device for use in tunnel kilns, including a plurality of lance pipes 6, each lance pipe 6 having a conveying pipe 7 on one side, and a control device body 1 fixedly installed between each lance pipe 6 and the conveying pipe 7. Each control device body 1 includes a temperature needle 2, an actuator 3, a proportional valve 4, and a temperature controller 5. The temperature needle 2 is connected to the temperature controller 5, and both the proportional valve 4 and the temperature controller 5 are connected to the actuator 3. A first mounting assembly 8 is fixedly installed at the bottom of the temperature needle 2, and the temperature controller 5... The surface is equipped with a second mounting component 9. The first mounting component 8 includes a fixed platform 805 and a mounting platform 801. Both sides of the inner wall of the fixed platform 805 are provided with height grooves 811. Height blocks 810 are slidably connected inside the two height grooves 811. A push platform 808 is fixedly installed between the two height blocks 810. Both sides of the top of the push platform 808 are fixedly installed with length shells 803. The top of the two length shells 803 are slidably connected with length rods 802. The top of the two length rods 802 are respectively fixedly connected to the two sides of the bottom of the mounting platform 801.

[0026] Fixed posts 806 are fixedly installed at the four corners of the bottom of the fixed platform 805. A push screw 807 is threadedly connected to the middle of the bottom of the fixed platform 805. The top of the push screw 807 is rotatably connected to the middle of the bottom of the push platform 808. Connecting springs 809 are fixedly installed at the bottom of the two height blocks 810. The bottom of the two connecting springs 809 is fixedly connected to the bottom of the inner wall of the two height grooves 811 respectively. Locking screws 804 are threadedly connected to the surfaces of the two length shells 803. The two length shells 803 are connected by locking screws. The nail 804 is fixedly connected to the two length rods 802 respectively. The user rotates the push screw 807. The thread on the surface of the push screw 807 matches the thread on the inner wall of the fixed platform 805. Therefore, the push screw 807 rotates and rises relative to the fixed platform 805. The push screw 807 pushes the push platform 808 from the bottom to adjust the height of the mounting platform 801. The user slides the length rod 802 along the length shell 803 to make a secondary adjustment to the height of the mounting platform 801, thereby indirectly adjusting the installation height of the temperature needle 2.

[0027] The top of the mounting platform 801 is fixedly connected to the temperature needle 2, and the bottom of the four fixing posts 806 are fixedly connected to the side of the temperature controller 5 facing each other. The first mounting component 8 adjusts the position of the temperature needle 2 through the mounting platform 801.

[0028] The second mounting assembly 9 includes a clamping shell 91 and a first clamping plate 93. One side of the top of the clamping shell 91 is fixedly connected to the bottom of the first clamping plate 93. The other side of the top of the clamping shell 91 is provided with a clamping groove 95. The second clamping plate 94 is slidably connected inside the clamping groove 95. A clamping cylinder 96 is fixedly mounted on the surface of the clamping shell 91. The movable end of the clamping cylinder 96 is fixedly connected to the side of the second clamping plate 94 facing each other. Perforated positioning plates 92 are fixedly mounted on both sides of the clamping shell 91. The side of the first clamping plate 93 near the second clamping plate 94 and the side of the second clamping plate 94 near the first clamping plate 93 are respectively in contact with the two sides of the temperature controller 5. The user screws through the perforated positioning plates 92 to install the second mounting assembly 9 at the place of use. The clamping cylinder 96 performs a telescopic movement and pushes the second clamping plate 94 from one side. The first clamping plate 93 and the second clamping plate 94 cooperate with each other to clamp and fix the temperature controller 5.

[0029] One side of the actuator 3 is fixedly connected to one end of the gun pipe 6. The actuator 3 receives signals from the controller or the upper system and converts them into mechanical motion to control whether the gun pipe 6 transmits gas.

[0030] One side of the proportional valve 4 is connected to the middle of the lance pipe 6, and the sensing end of the temperature needle 2 is inserted into the delivery pipe 7 to sense the temperature in the delivery pipe 7 in real time. The proportional valve 4 controls the flow rate and pressure of the high-temperature hot gas output from the lance pipe 6.

[0031] The surface of the temperature controller 5 is fixedly connected to the middle of the conveying pipe 7. The temperature controller 5 is installed on the conveying pipe 7 to regulate the temperature inside the conveying pipe 7 in real time.

[0032] Example 1:

[0033] In this embodiment, during use: the user screws through the perforated positioning plate 92 to install the second mounting component 9 at the point of use. The clamping cylinder 96 extends and retracts, pushing the second clamping plate 94 from one side. The first clamping plate 93 and the second clamping plate 94 cooperate to clamp and fix the temperature controller 5. The user rotates the push screw 807, whose threads match the threads on the inner wall of the fixing platform 805, causing the push screw 807 to rotate and rise relative to the fixing platform 805. The push screw 807 pushes the push platform 808 from the bottom, adjusting the height of the mounting platform 801. The user slides the length rod 802 along the length shell 803 to adjust the height of the mounting platform 801. The height of actuator 1 is adjusted twice, indirectly adjusting the installation height of temperature needle 2. Actuator 3 receives signals from the controller or upper system and converts them into mechanical motion to control whether the torch pipe 6 of the tunnel kiln transmits gas. Proportional valve 4 controls the flow and pressure of high-temperature hot gas output from torch pipe 6 of the tunnel kiln according to the signals received by actuator 3. Temperature controller 5 is installed on the conveying pipe 7 of the tunnel kiln to regulate the temperature in the conveying pipe 7 of the tunnel kiln in real time. Temperature needle 2 is installed on one side of temperature controller 5, and the sensing end of temperature needle 2 is inserted into the conveying pipe 7 of the tunnel kiln to sense the temperature in the conveying pipe 7 of the tunnel kiln in real time.

[0034] Example 2:

[0035] In this embodiment of the application, the actuator 3 receives a signal from the controller or the upper-level system and converts it into mechanical motion to control whether the gas transmission in the lance pipe 6 of the roller kiln is controlled. The proportional valve 4 controls the flow rate and pressure of the high-temperature hot gas output from the lance pipe 6 of the roller kiln according to the signal received by the actuator 3. The temperature controller 5 is installed on the conveying pipe 7 of the roller kiln to regulate the temperature in the conveying pipe 7 of the roller kiln in real time. The temperature needle 2 is installed on one side of the temperature controller 5, and the sensing end of the temperature needle 2 is inserted into the conveying pipe 7 of the roller kiln to sense the temperature in the conveying pipe 7 of the roller kiln in real time.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A roller kiln with a single-point control device for use in tunnel kilns, comprising a plurality of lance pipes (6), characterized in that: Each of the plurality of gun pipes (6) is provided with a conveying pipe (7) on one side. A control device body (1) is fixedly installed between each of the plurality of gun pipes (6) and the plurality of conveying pipes (7). Each of the plurality of control device bodies (1) includes a temperature needle (2), an actuator (3), a proportional valve (4), and a temperature controller (5). The temperature needle (2) is connected to the temperature controller (5). The proportional valve (4) and the temperature controller (5) are both connected to the actuator (3). A first mounting assembly (8) is fixedly installed at the bottom end of the temperature needle (2). A second mounting assembly (9) is installed on the surface of the temperature controller (5). An installation component (8) includes a fixed platform (805) and an installation platform (801). The fixed platform (805) has height grooves (811) on both sides of its inner wall. Height blocks (810) are slidably connected inside the two height grooves (811). A pusher platform (808) is fixedly installed between the two height blocks (810). Length shells (803) are fixedly installed on both sides of the top of the pusher platform (808). Length rods (802) are slidably connected to the top of the two length shells (803). The tops of the two length rods (802) are respectively fixedly connected to the two sides of the bottom of the installation platform (801).

2. A roller kiln with a single-point control device for use in tunnel kilns according to claim 1, characterized in that: Fixed posts (806) are fixedly installed at the four corners of the bottom of the fixed platform (805). A push screw (807) is threadedly connected to the middle of the bottom of the fixed platform (805). The top of the push screw (807) is rotatably connected to the middle of the bottom of the push platform (808). A connecting spring (809) is fixedly installed at the bottom of each of the two height blocks (810). The bottom of each of the two connecting springs (809) is fixedly connected to the bottom of the inner wall of each of the two height grooves (811). Locking screws (804) are threadedly connected to the surfaces of each of the two length shells (803). The two length shells (803) are fixedly connected to the two length rods (802) respectively by the locking screws (804).

3. A roller kiln with a single-point control device for use in tunnel kilns according to claim 2, characterized in that: The top of the mounting platform (801) is fixedly connected to the temperature needle (2), and the bottom of the four fixing columns (806) are fixedly connected to the side of the temperature controller (5) facing each other.

4. A roller kiln with a single-point control device for use in tunnel kilns according to claim 1, characterized in that: The second mounting assembly (9) includes a clamping shell (91) and a first clamping plate (93). One side of the top of the clamping shell (91) is fixedly connected to the bottom of the first clamping plate (93). A clamping groove (95) is provided on the other side of the top of the clamping shell (91). A second clamping plate (94) is slidably connected inside the clamping groove (95). A clamping cylinder (96) is fixedly installed on the surface of the clamping shell (91). The movable end of the clamping cylinder (96) is fixedly connected to the side of the second clamping plate (94) facing each other. A perforated positioning plate (92) is fixedly installed on both sides of the clamping shell (91). The side of the first clamping plate (93) near the second clamping plate (94) and the side of the second clamping plate (94) near the first clamping plate (93) are respectively in contact with the two sides of the temperature controller (5).

5. A roller kiln with a single-point control device for use in tunnel kilns according to claim 1, characterized in that: One side of the actuator (3) is fixedly connected to one end of the gun pipe (6).

6. A roller kiln with a single-point control device for use in tunnel kilns according to claim 1, characterized in that: One side of the proportional valve (4) is connected to the middle of the musket pipe (6).

7. A roller kiln with a single-point control device for use in tunnel kilns according to claim 1, characterized in that: The surface of the temperature controller (5) is fixedly connected to the middle of the conveying pipe (7).

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