阅读说明：本技术 一种滑环式回转窑用直接测温装置及其使用方法 (Direct temperature measuring device for sliding ring type rotary kiln and using method thereof ) 是由 陈源 向明勇 杨雪峰 曾江 霍振军 汤波 吴恒宇 于 2021-09-17 设计创作，主要内容包括：本发明公开了一种滑环式回转窑用直接测温装置及其使用方法,包括回转窑窑壳,所述回转窑窑壳的内部固定连接有耐火内衬,所述耐火内衬的内部设置有物料,所述回转窑窑壳的外侧固定连接有防护箱,所述防护箱的一端贯穿回转窑窑壳与耐火内衬且延伸至耐火内衬的内部,所述防护箱的内壁靠近耐火内衬的一侧开设有两个第一限位槽,本发明结构紧凑,操作简单便捷,实用性强,通过设置遮挡板对测温通孔进行遮挡,从而防止高温物料进入测温通孔的内部影响测温精度,并且通过设置由推动机构驱动的热电偶,能够在不需测温时将其收缩至遮挡板的后方,从而极大的降低了物料对偶头的磨损程度,进而提高了热电偶的使用寿命,有利于实际的应用。(The invention discloses a direct temperature measuring device for a sliding ring type rotary kiln and a using method thereof, the direct temperature measuring device comprises a rotary kiln shell, a fireproof lining is fixedly connected inside the rotary kiln shell, materials are arranged inside the fireproof lining, a protective box is fixedly connected outside the rotary kiln shell, one end of the protective box penetrates through the rotary kiln shell and the fireproof lining and extends into the fireproof lining, and two first limiting grooves are arranged on one side, close to the fireproof lining, of the inner wall of the protective box. Thereby prolonging the service life of the thermocouple and being beneficial to practical application.)

1. A direct temperature measuring device for a slip ring type rotary kiln comprises a rotary kiln shell (2) and is characterized in that a fire-resistant lining (1) is fixedly connected inside the rotary kiln shell (2), a material (3) is arranged inside the fire-resistant lining (1), a protective box (4) is fixedly connected outside the rotary kiln shell (2), one end of the protective box (4) penetrates through the rotary kiln shell (2) and the fire-resistant lining (1) and extends into the fire-resistant lining (1), two first limiting grooves (5) are formed in one side, close to the fire-resistant lining (1), of the inner wall of the protective box (4), a first limiting block (6) is connected inside the first limiting grooves (5) in a sliding mode, one end, far away from the fire-resistant lining (1), of the first limiting block (6) extends to the outer side of the first limiting grooves (5) and is fixedly connected with a shielding plate (7), the shielding plates (7) are all connected with the inner wall of the protective box (4) in a sliding manner, shielding return mechanisms (8) are arranged inside the protective box (4) and on one side of the shielding plates (7), two electric telescopic rods (9) are fixedly mounted at one end, far away from the fireproof lining (1), of the protective box (4) and on the outer side of the rotary kiln shell (2), piston rods of the electric telescopic rods (9) extend into the protective box (4), a movable plate (10) is fixedly connected between the piston rods of the two electric telescopic rods (9) and inside the protective box (4), the movable plate (10) is connected with the inner wall of the protective box (4) in a sliding manner, a movable sleeve (11) is fixedly connected to one side, far away from the piston rods of the electric telescopic rods (9), of the movable plate (10), and a movable iron core (12) is connected to the inside of the movable sleeve (11) in a sliding manner, move iron core (12) and keep away from one side fixedly connected with thermocouple (13) of movable plate (10), thermocouple (13) keep away from the one end of moving iron core (12) and extend to outside and fixedly connected with couple head (14) of removal sleeve (11), the outside of removal sleeve (11) is provided with pushing mechanism (15).

2. The direct temperature measuring device for the slip-ring rotary kiln according to claim 1, wherein the shielding return mechanism (8) comprises two fixing rods (81), two ends of the inner wall of the protective box (4) close to the shielding plate (7) are fixedly connected with the two fixing rods (81), one end of each fixing rod (81) far away from the inner wall of the protective box (4) is fixedly connected with a limiting plate (82), a sliding plate (83) is slidably connected between the outer sides of the two corresponding fixing rods (81), one side of each sliding plate (83) close to the inner wall of the protective box (4) and between the two corresponding fixing rods (81) are fixedly connected with a first return spring (86), one end of each first return spring (86) far away from the sliding plate (83) is fixedly connected with the inner wall of the protective box (4), one end of each sliding plate (83) close to the shielding plate (7) is fixedly connected with the corresponding shielding plate (7), the shielding plate is characterized in that one end, far away from the shielding plate (7), of the sliding plate (83) is fixedly connected with a pushing block (84), and a pressure sensor (85) is fixedly mounted on the inner wall of the protection box (4) and located on one side of the pushing block (84).

3. The direct temperature measuring device for the slip ring rotary kiln according to claim 2, wherein the pushing mechanism (15) comprises a stationary iron core (151), one end of the interior of the movable sleeve (11) far away from the thermocouple (13) is fixedly provided with the stationary iron core (151), one side of the stationary iron core (151) close to the movable iron core (12) is fixedly connected with two second return springs (152), one end of each second return spring (152) far away from the stationary iron core (151) is fixedly connected with the outer side of the movable iron core (12), the outer part of the movable sleeve (11) and the outer side of the stationary iron core (151) are fixedly provided with a first electromagnet coil (153), the outer part of the movable sleeve (11) and the outer side of the movable iron core (12) are fixedly provided with a second electromagnet coil (154), one ends of two sides of the movable sleeve (11) far away from the first electromagnet coil (153) are fixedly connected with a fixing plate (155), one end of the fixing plate (155) far away from the movable sleeve (11) is rotatably connected with a pushing roller (156).

4. The direct temperature measuring device for the slip ring rotary kiln as claimed in claim 3, wherein one end of the protective box (4) far away from the electric telescopic rod (9) is provided with a temperature measuring through hole (16), and the sum of the sizes of the two shielding plates (7) is larger than the size of the temperature measuring through hole (16).

5. The direct temperature measuring device for the slip ring rotary kiln according to claim 1, wherein second limiting grooves (17) are formed in both sides of the inner wall of the protective box (4) and at one end close to the electric telescopic rod (9), second limiting blocks (18) are fixedly connected to one sides of the movable plate (10) close to the second limiting grooves (17), and the second limiting blocks (18) extend into the corresponding second limiting grooves (17) and are in sliding connection with the corresponding second limiting grooves (17).

6. The direct temperature measuring device for the slip ring rotary kiln as claimed in claim 3, wherein the movable iron core (12) has the same magnetic pole on the side close to the static iron core (151).

7. The direct temperature measuring device for the slip ring rotary kiln according to claim 4, wherein the protective box (4) is far away from one side of the temperature measuring through hole (16) and is positioned between the two electric telescopic rods (9) and is fixedly provided with a PLC (programmable logic controller) (19), and the pressure sensor (85), the electric telescopic rods (9), the thermocouple (13), the first electromagnet coil (153) and the second electromagnet coil (154) are electrically connected with the PLC (19).

8. The direct temperature measuring device for the slip ring rotary kiln as claimed in claim 3, wherein the pushing blocks (84) are all arranged in a triangular structure, and the pushing rollers (156) are all in rolling connection with the inclined surfaces on the outer sides of the pushing blocks (84).

9. The use method of the direct temperature measuring device for the slip ring rotary kiln according to any one of claims 1 to 8, characterized by comprising the following steps:

s1, a protection box (4) is installed on the outer side of a kiln shell (2) of a rotary kiln, one end of the protection box extends into a fireproof lining (1), when temperature measurement is needed, an electric telescopic rod (9) is controlled to work through a PLC (programmable logic controller) controller (19), a pushing moving plate (10) moves under the limit matching between a second limit groove (17) and a second limit block (18), meanwhile, a moving sleeve (11), a thermocouple (13) and a coupling head (14) are driven to move, a fixed plate (155) and a pushing roller (156) are driven to move through the movement of the moving sleeve (11), a sliding plate (83) is pushed to move on the outer side of the fixed rod (81) under the matching between the pushing roller (156) and a pushing block (84) of a triangular structure, a first return spring (86) is simultaneously squeezed, a shielding plate (7) is driven to open, and when the pushing block (84) touches a pressure sensor (85) on the inner wall of the protection box (4), the pressure sensor (85) transmits a signal to the PLC (19), the PLC (19) controls the electric telescopic rod (9) to stop working, so that the position of the pushing block (84) is pushed and fixed through the pushing roller (156), and the shielding plate (7) is ensured not to shield the temperature measuring through hole (16);

s2, the PLC (19) controls the first electromagnet coil (153) and the second electromagnet coil (154) to be electrified, so that the static iron core (151) and the movable iron core (12) have magnetism at the same time, because the static iron core (151) and the movable iron core (12) are close to each other, the static iron core (151) and the movable iron core (12) are mutually repelled, meanwhile, the elasticity of the second return spring (152) is overcome, the movable iron core (12) moves in the movable sleeve (11), meanwhile, the thermocouple (13) and the thermocouple head (14) are driven to move towards the direction of the temperature measuring through hole (16), and when the thermocouple head (14) extends out of the refractory lining (1) through the temperature measuring through hole (16), direct temperature measuring operation can be started;

s3, after temperature measurement is completed, the first electromagnet coil (153) and the second electromagnet coil (154) are controlled to be powered off, the static iron core (151) and the movable iron core (12) do not have magnetism any more, under the elastic action of the second return spring (152), the movable iron core (12), the thermocouple (13) and the coupling head (14) return, then the PLC (19) controls the electric telescopic rod (9) to start working, the movable plate (10) and the movable sleeve (11) are driven to return, the pushing block (84) and the sliding plate (83) return under the action of the first return spring (86), and the temperature measurement through hole (16) is shielded again through the shielding plate (7).

Technical Field

The invention belongs to the technical field of rotary kiln temperature measurement, and particularly relates to a direct temperature measurement device for a sliding ring type rotary kiln and a use method thereof.

Background

In the present life, the rotary kiln is widely used in various industries, for example, in many production industries such as building materials, metallurgy, chemical industry, environmental protection, etc., the rotary kiln is used for mechanical, physical or chemical treatment of solid materials, specifically: firstly, in the ferrous metallurgy, iron, aluminum, copper, zinc, tin, nickel, tungsten, chromium, file and other metals are sintered and roasted by taking a rotary kiln as smelting equipment, wherein aluminum hydroxide is roasted into alumina by using the rotary kiln in the aluminum production, pellets for blast furnace ironmaking are produced by using the rotary kiln in the ironmaking, the foreign SL/RN method and Krupp method are used for directly reducing iron ore by using the rotary kiln, the chlorination volatilization roasting method adopts the rotary kiln to extract tin, lead and the like, in addition, in the ore dressing process, lean iron ore is magnetized and roasted by using the rotary kiln, the original weak magnetism of the ore is changed into strong magnetism so as to be beneficial to magnetic separation, finally, in the chemical industry, the rotary kiln is used for producing soda, calcined phosphate fertilizer, barium sulfide and the like, and the rotary kiln has various types, the slip-ring rotary kiln is one of the rotary kilns, whether in the traditional rotary kiln or the slip-ring rotary kiln, temperature measurement and control are a problem that is of concern to those skilled in the art.

In the prior art, when the temperature inside the sliding ring type rotary kiln is measured, two modes of direct temperature measurement and indirect temperature measurement are adopted, wherein the direct temperature measurement is mainly carried out by adopting a thermocouple mode, a thermocouple head penetrates through a temperature measurement through hole to extend into the sliding ring type rotary kiln for temperature measurement, then temperature information is transmitted to a central control room for guiding production, in the practical application of the measuring mode, high-temperature powdery materials are easy to enter a gap between the thermocouple and the temperature measurement through hole, semi-molten materials are easy to adhere, once the materials are difficult to pour out from the temperature measurement through hole, a material bump is formed after long-term accumulation to block the temperature measurement through hole, so that the temperature measurement precision is greatly reduced, meanwhile, because the thermocouple head is positioned inside the sliding ring type rotary kiln, the thermocouple head is abraded by the materials for a long time, the temperature measurement capability is lost, and the service life of the thermocouple is greatly reduced, is not favorable for practical application.

The invention content is as follows:

the invention aims to solve the problems in the prior art, and provides a direct temperature measuring device for a slip ring type rotary kiln and a using method thereof.

In order to solve the above problems, the present invention provides a technical solution:

a direct temperature measuring device for a sliding ring type rotary kiln comprises a rotary kiln shell, wherein a fireproof lining is fixedly connected inside the rotary kiln shell, materials are arranged inside the fireproof lining, a protective box is fixedly connected to the outer side of the rotary kiln shell, one end of the protective box penetrates through the rotary kiln shell and the fireproof lining and extends into the fireproof lining, two first limiting grooves are formed in one side, close to the fireproof lining, of the inner wall of the protective box, a first limiting block is connected to the inside of each first limiting groove in a sliding mode, one end, far away from the fireproof lining, of each first limiting block extends to the outer side of each first limiting groove and is fixedly connected with a shielding plate, the shielding plates are connected with the inner wall of the protective box in a sliding mode, a shielding return mechanism is arranged in one side, far away from the fireproof lining, of the protective box, and two electric telescopic rods are fixedly arranged on the outer side of the rotary kiln shell, the utility model discloses a safety protection box, including electric telescopic handle, movable plate, electric telescopic handle's piston rod, movable plate and movable plate, electric telescopic handle's piston rod all extends to the inside of guard box, two the inside fixedly connected with movable plate that just is located the guard box between electric telescopic handle's the piston rod, the inner wall sliding connection of movable plate and guard box, one side fixedly connected with moving sleeve of electric telescopic handle piston rod is kept away from to the movable plate, moving sleeve's inside sliding connection has and moves the iron core, move one side fixedly connected with thermocouple that the iron core was kept away from to the iron core, the thermocouple is kept away from and is moved the one end of iron core and extend to moving sleeve's the outside and fixedly connected with idol, moving sleeve's the outside and being provided with pushing mechanism.

As preferred, it includes the dead lever to shelter from return mechanism, two dead levers of the equal fixedly connected with of one end that the both sides of protective housing inner wall are close to the shielding plate, the equal fixedly connected with limiting plate of one end that the protective housing inner wall was kept away from to the dead lever corresponds two equal sliding connection has the slide between the outside of dead lever, the slide is close to one side of protective housing inner wall and is located to correspond the first return spring of equal fixedly connected with between two dead levers, the one end that the slide was kept away from to first return spring all with the inner wall fixed connection of protective housing, the one end that the slide is close to the shielding plate all with the shielding plate fixed connection that corresponds, the equal fixedly connected with of one end that the shielding plate was kept away from to the slide promotes the piece, the inner wall of protective housing and the equal fixed mounting in one side that is located to promote the piece have pressure sensor.

As preferred, pushing mechanism includes quiet iron core, the one end fixed mounting who keeps away from the thermocouple of moving telescopic inside has quiet iron core, quiet iron core is close to two second return springs of one side fixedly connected with that move the iron core, the one end that quiet iron core was kept away from to the second return spring all with the outside fixed connection who moves the iron core, the outside fixed mounting that moves telescopic outside and be located quiet iron core has first electromagnet coil, the outside fixed mounting that moves telescopic outside and be located and move the iron core has second electromagnet coil, the equal fixedly connected with fixed plate of one end that first electromagnet coil was kept away from to the both sides that move telescopic, the fixed plate is kept away from and is all rotated to the telescopic one end of removal and is connected with the promotion gyro wheel.

Preferably, the protection box is far away from electric telescopic handle's one end and has been seted up the temperature measurement through-hole, two the size sum of sheltering from the board is greater than the size of temperature measurement through-hole.

Preferably, a second limiting groove is formed in one end, close to the electric telescopic rod, of each of the two sides of the inner wall of the protection box, a second limiting block is fixedly connected to one side, close to the second limiting groove, of the movable plate, and the second limiting blocks extend to the corresponding inner portion of the second limiting groove and are connected with the corresponding second limiting groove in a sliding mode.

Preferably, the movable iron core and the static iron core have the same magnetic pole on the side close to each other.

Preferably, the protection box is far away from one side of temperature measurement through-hole and is located fixed mounting between two electric telescopic handle and has the PLC controller, pressure sensor, electric telescopic handle, thermocouple, first electromagnet coil, second electromagnet coil all with PLC controller electric connection.

Preferably, the pushing blocks are all arranged to be triangular structures, and the pushing rollers are all in rolling connection with the inclined surfaces on the outer sides of the pushing blocks.

A use method of a direct temperature measuring device for a sliding ring type rotary kiln comprises the following steps:

s1, installing a protective box on the outer side of a rotary kiln shell, enabling one end of the protective box to extend into the interior of a refractory lining, when temperature measurement is needed, controlling an electric telescopic rod to work through a PLC controller, pushing a movable plate to move under the limit matching between a second limit groove and a second limit block, simultaneously driving a movable sleeve, a thermocouple and a coupling head to move, driving a fixed plate and a pushing roller to move through the movement of the movable sleeve, pushing a sliding plate to move on the outer side of a fixed rod under the matching between the pushing roller and a pushing block of a triangular structure, simultaneously extruding a first return spring and driving a shielding plate to open, when the pushing block touches a pressure sensor on the inner wall of the protective box, transmitting a signal to the PLC controller by the pressure sensor, controlling the electric telescopic rod to stop working by the PLC controller, thereby pushing and fixing the position of the pushing block through the pushing roller, thereby ensuring that the shielding plate does not shield the temperature measuring through hole any more;

s2, the PLC controls the first electromagnet coil and the second electromagnet coil to be electrified, so that the static iron core and the movable iron core have magnetism at the same time, the static iron core and the movable iron core are mutually repelled due to the fact that the magnetic poles of the static iron core and the movable iron core are the same at one side close to each other, meanwhile, the elasticity of the second return spring is overcome, the movable iron core moves in the movable sleeve, the thermocouple and the thermocouple head are driven to move towards the temperature measuring through hole, and when the thermocouple head extends out of the interior of the refractory lining through the temperature measuring through hole, direct temperature measuring operation can be started;

s3, after the temperature measurement is completed, the first electromagnet coil and the second electromagnet coil are controlled to be powered off, the static iron core and the movable iron core do not have magnetism any more, the movable iron core, the thermocouple and the coupling head return under the elastic action of the second return spring, then the PLC controller controls the electric telescopic rod to start working, the movable plate and the movable sleeve return are driven, the pushing block and the sliding plate return under the action of the first return spring, and the temperature measurement through hole is shielded through the shielding plate again.

The invention has the beneficial effects that: the thermocouple has the advantages that the structure is compact, the operation is simple and convenient, the practicability is high, the temperature measuring through hole is shielded by the shielding plate, so that high-temperature materials are prevented from entering the inside of the temperature measuring through hole to influence the temperature measuring precision, and the thermocouple driven by the pushing mechanism can be retracted to the rear side of the shielding plate when temperature measurement is not needed, so that the abrasion degree of the materials to a thermocouple head is greatly reduced, the service life of the thermocouple is prolonged, and the practical application is facilitated.

Description of the drawings:

for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.

FIG. 1 is a schematic view of the connection between a slip ring rotary kiln and a direct temperature measuring device according to the present invention;

FIG. 2 is a schematic view of the internal structure of the protective case of the present invention;

FIG. 3 is a schematic view of the pushing mechanism of the present invention;

fig. 4 is an enlarged view of a portion a in fig. 2.

In the figure: 1. a refractory lining; 2. a rotary kiln shell; 3. material preparation; 4. a protective box; 5. a first limit groove; 6. a first stopper; 7. a shielding plate; 8. a shielding return mechanism; 81. fixing the rod; 82. a limiting plate; 83. a slide plate; 84. a pushing block; 85. a pressure sensor; 86. a first return spring; 9. an electric telescopic rod; 10. moving the plate; 11. moving the sleeve; 12. a movable iron core; 13. a thermocouple; 14. a coupling head; 15. a pushing mechanism; 151. a stationary iron core; 152. a second return spring; 153. a first electromagnet coil; 154. a second electromagnet coil; 155. a fixing plate; 156. pushing the roller; 16. a temperature measuring through hole; 17. a second limit groove; 18. a second limiting block; 19. a PLC controller.

The specific implementation mode is as follows:

as shown in fig. 1 to 4, the following technical solutions are adopted in the present embodiment:

example (b):

a direct temperature measuring device for a sliding ring type rotary kiln comprises a rotary kiln shell 2, wherein a fireproof lining 1 is fixedly connected inside the rotary kiln shell 2, and the fireproof lining 1 is arranged inside the rotary kiln shell 2, so that better heat insulation operation is facilitated; the material 3 is arranged inside the refractory lining 1, the protective box 4 is fixedly connected to the outer side of the rotary kiln shell 2, and one end of the protective box 4 penetrates through the rotary kiln shell 2 and the refractory lining 1 and extends into the refractory lining 1, so that subsequent temperature measurement operation can be performed better; two first limiting grooves 5 are formed in one side, close to the refractory lining 1, of the inner wall of the protection box 4, first limiting blocks 6 are connected to the inner portions of the first limiting grooves 5 in a sliding mode, one ends, far away from the refractory lining 1, of the first limiting blocks 6 extend to the outer sides of the first limiting grooves 5 and are fixedly connected with shielding plates 7, the shielding plates 7 are connected with the inner wall of the protection box 4 in a sliding mode, and the movement of the shielding plates 7 is limited better through the matching between the first limiting grooves 5 and the first limiting blocks 6; a shielding return mechanism 8 is arranged inside the protection box 4 and on one side of the shielding plate 7, two electric telescopic rods 9 are fixedly arranged at one end of the protection box 4, which is far away from the fireproof lining 1, and on the outer side of the rotary kiln shell 2, piston rods of the electric telescopic rods 9 extend into the protection box 4, a moving plate 10 is fixedly connected between the piston rods of the two electric telescopic rods 9 and inside the protection box 4, the moving plate 10 is in sliding connection with the inner wall of the protection box 4, and the electric telescopic rods 9 are controlled to work, so that the moving plate 10 can be better pushed to move inside the protection box 4; one side, far away from a piston rod of the electric telescopic rod 9, of the moving plate 10 is fixedly connected with a moving sleeve 11, a moving iron core 12 is connected inside the moving sleeve 11 in a sliding mode, one side, far away from the moving plate 10, of the moving iron core 12 is fixedly connected with a thermocouple 13, one end, far away from the moving iron core 12, of the thermocouple 13 extends to the outer side of the moving sleeve 11 and is fixedly connected with a coupling head 14, and the thermocouple 13 is electrically connected with temperature monitoring equipment inside an external central control room, so that temperature data measured by the thermocouple 13 can be better transmitted, production guidance can be performed, and meanwhile, the moving sleeve 11 can be better driven to move through movement of the moving plate 10, so that the thermocouple 13 and the coupling head 14 are driven to move for a certain distance; the outside of the traveling sleeve 11 is provided with a pushing mechanism 15.

Wherein, the shielding return mechanism 8 comprises a fixing rod 81, two fixing rods 81 are fixedly connected to both sides of the inner wall of the protection box 4 at the ends close to the shielding plate 7, a limiting plate 82 is fixedly connected to both ends of the fixing rod 81 far away from the inner wall of the protection box 4, a sliding plate 83 is slidably connected between the outer sides of the two corresponding fixing rods 81, a first return spring 86 is fixedly connected to one side of the sliding plate 83 close to the inner wall of the protection box 4 and between the two corresponding fixing rods 81, one end of the first return spring 86 far away from the sliding plate 83 is fixedly connected to the inner wall of the protection box 4, one end of the sliding plate 83 close to the shielding plate 7 is fixedly connected to the corresponding shielding plate 7, a pushing block 84 is fixedly connected to one end of the sliding plate 83 far away from the shielding plate 7, and a pressure sensor 85 is fixedly mounted to one side of the inner wall of the protection box 4 and located on the pushing block 84, the model of pressure sensor 85 is MPX5999, shelters from return mechanism 8 through setting up, and the better removal that removes at movable sleeve 11 down of being convenient for drives two shielding plates 7 and removes to no longer shelter from, make things convenient for follow-up stretch out the outside to protective housing 4 with thermocouple 13 and idol 14.

Wherein, the pushing mechanism 15 includes a stationary iron core 151, one end fixed mounting of the thermocouple 13 is kept away from inside of the movable sleeve 11 has the stationary iron core 151, one side of the stationary iron core 151 close to the movable iron core 12 is fixedly connected with two second return springs 152, one end of the second return spring 152 far away from the stationary iron core 151 is fixedly connected with the outside of the movable iron core 12, the outside of the movable sleeve 11 and the outside of the stationary iron core 151 are fixedly mounted with a first electromagnet coil 153, the outside of the movable sleeve 11 and the outside of the movable iron core 12 are fixedly mounted with a second electromagnet coil 154, one ends of the two sides of the movable sleeve 11 far away from the first electromagnet coil 153 are fixedly connected with a fixed plate 155, one end of the fixed plate 155 far away from the movable sleeve 11 is rotatably connected with a pushing roller 156, and by setting the pushing mechanism 15, better thermocouple 13 and the coupling head 14 can be conveniently controlled to perform telescopic operation, thereby better carrying out direct temperature measurement operation.

The protection box 4 is provided with a temperature measuring through hole 16 at one end far away from the electric telescopic rod 9, the sum of the sizes of the two shielding plates 7 is larger than the size of the temperature measuring through hole 16, the shielding plates 7 are convenient to better shield the temperature measuring through hole 16, and meanwhile, the temperature measuring through hole 16 is convenient to better match with the thermocouple 13 and the thermocouple head 14 for use.

Wherein, second spacing groove 17 has all been seted up to the one end that the both sides of 4 inner walls of guard box are close to electric telescopic handle 9, the equal fixedly connected with second stopper 18 in one side that the movable plate 10 is close to second spacing groove 17, second stopper 18 all extend to the inside of the second spacing groove 17 that corresponds and with the second spacing groove 17 sliding connection that corresponds, through the cooperation between second spacing groove 17 and the second stopper 18, be convenient for better carry on spacingly to the removal of movable plate 10.

The magnetic poles of the movable iron core 12 and the static iron core 151 on the side close to each other are the same, so that the movable iron core 12 and the static iron core 151 are mutually repelled conveniently.

Wherein, guard box 4 keeps away from one side of temperature measurement through-hole 16 and is located fixed mounting between two electric telescopic handle 9 and has PLC controller 19, pressure sensor 85, electric telescopic handle 9, thermocouple 13, first electromagnet coil 153, second electromagnet coil 154 all with PLC controller 19 electric connection, be convenient for better control the equipment is whole through PLC controller 19.

The pushing blocks 84 are all arranged in a triangular structure, the pushing rollers 156 are all in rolling connection with the inclined surfaces on the outer sides of the pushing blocks 84, and the pushing operation can be completed better through the cooperation between the inclined surfaces on the outer sides of the pushing blocks 84 and the pushing rollers 156.

A use method of a direct temperature measuring device for a sliding ring type rotary kiln comprises the following steps:

s1, installing the protection box 4 at the outer side of the kiln shell 2 of the rotary kiln, making one end of the protection box extend into the refractory lining 1, when temperature measurement is needed, controlling the electric telescopic rod 9 to work through the PLC 19, pushing the moving plate 10 to move under the limit fit between the second limit groove 17 and the second limit block 18, simultaneously driving the moving sleeve 11, the thermocouple 13 and the coupling 14 to move, driving the fixing plate 155 and the pushing roller 156 to move through the movement of the moving sleeve 11, pushing the sliding plate 83 to move at the outer side of the fixing rod 81 under the fit between the pushing roller 156 and the pushing block 84 with a triangular structure, simultaneously extruding the first return spring 86 and driving the shielding plate 7 to open, when the pushing block 84 touches the pressure sensor 85 on the inner wall of the protection box 4, transmitting a signal to the PLC 19 by the pressure sensor 85, controlling the electric telescopic rod 9 to stop working by the PLC 19, therefore, the position of the pushing block 84 is pushed and fixed through the pushing roller 156, so that the shielding plate 7 is ensured not to shield the temperature measuring through hole 16 any more;

s2, the PLC 19 controls the first electromagnet coil 153 and the second electromagnet coil 154 to be electrified, so that the static iron core 151 and the movable iron core 12 have magnetism at the same time, because the magnetic poles of one side of the static iron core 151 close to the movable iron core 12 are the same, the static iron core 151 and the movable iron core 12 repel each other, and meanwhile, the elasticity of the second return spring 152 is overcome, so that the movable iron core 12 moves in the movable sleeve 11, and the thermocouple 13 and the thermocouple head 14 are driven to move towards the temperature measuring through hole 16, when the thermocouple head 14 extends out of the refractory lining 1 through the temperature measuring through hole 16, direct temperature measuring operation can be started;

s3, after temperature measurement is completed, the first electromagnet coil 153 and the second electromagnet coil 154 are controlled to be powered off, the static iron core 151 and the movable iron core 12 are enabled to be no longer magnetic, the movable iron core 12, the thermocouple 13 and the coupling head 14 are enabled to return under the action of the elastic force of the second return spring 152, then the PLC 19 controls the electric telescopic rod 9 to start working, the movable plate 10 and the movable sleeve 11 are driven to return, the pushing block 84 and the sliding plate 83 return under the action of the first return spring 86, and the temperature measurement through hole 16 is shielded again through the shielding plate 7.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.