A calcination and drying furnace for synthesizing tungsten catalyst using sodium tungstate

Abstract

The present invention relates to the technical field of tungsten catalyst production and processing, and specifically to a roasting and drying furnace for synthesizing tungsten catalyst from sodium tungstate. The furnace comprises a truss, a reactor is fixedly arranged on the truss, and an external box is fixedly arranged on the reactor; the furnace also comprises a height adjustment component arranged in the external box, the height adjustment component comprises an adjustment structure and a reciprocating member, and when the adjustment structure is in motion, the movement stroke distance of the reciprocating member can be changed; a catalytic evaporation component is arranged in the reactor, and comprises a lifting structure, a stirring structure and an energy-saving structure, and when the reactor is working, the energy-saving structure is in motion to reuse the heat generated by the reaction; the lifting structure comprises a rotating member connected to the reciprocating member, and the stirring structure comprises a stirring member connected to the rotating member, and when the reciprocating member is lifted and lowered, the rotating member will cooperate with a trigger member fixedly arranged in the reactor to rotate, and when the rotating member rotates, the stirring member will rotate relative to the rotating member.

Description

Technical Field

[0001] The invention relates to the technical field of tungsten catalyst production and processing, in particular to a roasting and drying furnace for synthesizing tungsten catalysts from sodium tungstate. Background Art

[0002] Tungsten catalyst is an important catalyst, which is widely used in the chemical industry in hydrogenation, dehydrogenation, oxidation, cracking, isomerization and other reaction processes. It is an essential tool in chemical industry production. Sodium tungstate is one of the important materials for preparing tungsten catalyst.

[0003] The main raw materials of sodium tungstate are sodium tungstate trihydrate and sodium hydroxide. The preparation of tungsten catalyst requires mixing sodium tungstate of a certain mass and activity with a carrier material and performing drying and roasting under specific conditions. The existing roasting and drying furnace does not have a corresponding stirring structure, so it takes a long time to use. In addition, in order to achieve the appropriate roasting and drying temperature of the reactants during operation, the roasting and drying furnace needs to be continuously heated, and this process consumes a lot of energy. Summary of the Invention

[0004] The object of the present invention is to provide a calcination and drying furnace for synthesizing tungsten catalyst from sodium tungstate, so as to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A calcination and drying furnace for synthesizing tungsten catalyst from sodium tungstate, comprising a truss, a reaction furnace fixedly arranged on the truss, and an external auxiliary box fixedly arranged on the reaction furnace;

[0007] It also includes a height adjustment component disposed in the external box, the height adjustment component including an adjustment structure and a reciprocating member, and when the adjustment structure is actuated, the movement stroke distance of the reciprocating member can be changed;

[0008] A catalytic evaporation component is provided in the reactor and includes a lifting structure, a stirring structure, and an energy-saving structure. When the reactor is operating, the energy-saving structure is activated to reuse the heat generated by the reaction.

[0009] The lifting structure includes a rotating member connected to the reciprocating member, and the stirring structure includes a stirring member connected to the rotating member. When the reciprocating member is lifted and lowered, the rotating member will cooperate with the trigger member fixed in the reactor to rotate, and when the rotating member rotates, the stirring member will rotate relative to the rotating member.

[0010] As a further solution of the present invention: the reciprocating member includes a reciprocating plate slidably arranged in the external auxiliary box, a connecting member is fixedly arranged on the reciprocating plate, and a fixing ring is provided at one end of the connecting member away from the reciprocating plate.

[0011] As a further solution of the present invention: the adjustment structure includes an adjustment member and a driven member, the adjustment member includes a screw rod rotatably mounted on the external box, the screw rod is provided with a threaded sleeve threadedly connected thereto, and the threaded sleeve is rotatably mounted with a driving pulley.

[0012] As a further solution of the present invention: the driven member includes a sliding rod fixedly set on the external auxiliary box, a spring is slidably set on the sliding rod, one end of the spring abuts against the end of the sliding rod, and the other end is slidably set on the sliding rod, and the slider is rotatably installed with a passive pulley.

[0013] As a further solution of the present invention: the adjustment structure also includes a fixed pulley rotatably installed in the external box, the fixed pulley is connected to the active pulley and the passive pulley through a belt, and a trigger rod is fixedly provided on the belt, and the trigger rod is slidably provided in a movable groove opened on the reciprocating plate.

[0014] As a further solution of the present invention: the rotating member includes a sleeve ring rotatably connected to the fixed ring, a protrusion is formed on the inner wall of the sleeve ring, and two groups of mounting members are fixedly provided at equal distances along the circumference of the sleeve ring.

[0015] As a further solution of the present invention: the triggering member includes a fixing rod arranged in the reaction furnace, a spiral groove is formed on the outer wall of the fixing rod, and the protrusion is slidably arranged in the spiral groove.

[0016] As a further solution of the present invention: the stirring structure also includes a rotating rod rotatably installed in the reactor, and a gear is fixedly provided at one end of the rotating rod away from the bottom of the reactor, and the gear is engaged with a gear ring fixedly provided on the wall of the reactor.

[0017] As a further solution of the present invention: the stirring member includes a stirring drum rotatably mounted on the mounting member, and the stirring drum is slidably arranged on the rotating rod.

[0018] As a further solution of the present invention: the energy-saving structure includes a filter box fixedly installed on the reaction furnace, and the filter box is connected to the reaction furnace through a filter tube.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] By setting up a height adjustment component and a catalytic evaporation component and utilizing the cooperation between the two, when in use, the motor is started, and the motor drives the belt to rotate continuously in the same direction. At this time, the rotating belt drives the reciprocating plate to rise and fall. At this time, the sleeve ring sleeved on the fixed rod and connected to the reciprocating plate will drive the mixing drum to rise and fall while rotating around the fixed rod as the axis in the reactor under the cooperation of the spiral groove and the protrusion. When the mixing drum rotates around the fixed rod axis, due to the cooperation of the rotating rod, the gear and the gear ring, the mixing drum can rotate at the same time. In the cooperation of the above multiple relationships Under the use of the stirring drum, the sodium tungstate and the carrier material in the reactor can be turned and stirred, thereby increasing the contact area between the sodium tungstate and the high-temperature air in the reactor, thereby accelerating the evaporation rate of the water in the sodium tungstate and the reaction between the sodium tungstate and the carrier material, thereby quickly synthesizing the tungsten catalyst; and under the combined action of the regulating member and the driven member, the lifting distance of the reciprocating plate can be changed according to the different volumes of the mixture of sodium tungstate and the carrier material in the reactor, so that the catalytic evaporation component connected to the reciprocating plate always moves in the reactant, thereby accelerating the reaction in the reactor;

[0021] At the same time, when the belt is working, the energy-saving structure installed on the reactor works, which can draw the high-temperature gas generated in the reactor into the filter box for filtration, and then re-input the filtered high-temperature gas into the reactor to accelerate the temperature rise in the reactor, reduce the energy consumption when the reactor is heated, and enable the moisture in the sodium tungstate to be evaporated quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of a calcination and drying furnace for synthesizing tungsten catalyst from sodium tungstate.

[0023] Figure 2 This is a schematic structural diagram from another perspective of the calcination and drying furnace for synthesizing tungsten catalyst from sodium tungstate.

[0024] Figure 3 This is a schematic diagram of the structure inside the reactor in the calcination and drying furnace for synthesizing tungsten catalyst from sodium tungstate.

[0025] Figure 4 This is a schematic diagram of the structure of the gears and gear rings in the calcination and drying furnace for synthesizing tungsten catalyst from sodium tungstate.

[0026] Figure 5 This is a schematic diagram of the structure of the catalytic evaporation component in the calcination and drying furnace for synthesizing tungsten catalyst from sodium tungstate.

[0027] Figure 6 This is a schematic diagram of the structure of the stirring part in the calcination and drying furnace for synthesizing tungsten catalyst from sodium tungstate.

[0028] Figure 7This is a schematic diagram of the structure of the trigger component in the calcination and drying furnace for synthesizing tungsten catalyst from sodium tungstate.

[0029] Figure 8 This is a schematic diagram of the structure of the rotating parts in the calcination and drying furnace for synthesizing tungsten catalyst from sodium tungstate.

[0030] Figure 9 This is a schematic diagram of the structure of the height adjustment component in the calcination and drying furnace for synthesizing tungsten catalyst from sodium tungstate.

[0031] Figure 10 This is a schematic diagram of the structure of the connection between the regulating part and the driven part in the roasting and drying furnace for synthesizing tungsten catalyst from sodium tungstate.

[0032] Figure 11 This is a schematic diagram of the structure of the follower in the roasting and drying furnace for synthesizing tungsten catalyst from sodium tungstate.

[0033] Figure 12 This is a schematic diagram of the structure of the regulating parts in the calcination and drying furnace for synthesizing tungsten catalyst from sodium tungstate.

[0034] In the figure: 1. truss; 2. reactor; 3. filter box; 4. air pump; 5. constant pressure valve; 6. connector; 601. fixed ring; 7. external box; 8. rotating rod; 801. boss; 9. gear; 10. mixing drum; 1001. groove; 11. fixed rod; 1101. spiral groove; 12. gear ring; 13. sleeve ring; 1301. protrusion; 1302. mounting part; 14. reciprocating plate; 1401. moving groove; 1402. clamping rod; 15. screw rod; 16. slide rod; 17. belt; 1701. trigger rod; 18. passive pulley; 19. fixed pulley; 20. active pulley; 21. spring; 22. slider; 2201. T-block; 23. threaded sleeve; 2301. clamping block. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0037] See also Figures 1 to 12 In an embodiment of the present invention, a calcination and drying furnace for synthesizing a tungsten catalyst from sodium tungstate comprises a truss 1, a reaction furnace 2 is fixedly mounted on the truss 1, and an external box 7 is fixedly mounted on the reaction furnace 2;

[0038] In detail, the reactor 2 is provided with a constant pressure valve 5. When the reactor 2 is powered on and the material inside is roasted and heated, the moisture contained in the material inside will turn into steam under the action of high temperature. When the pressure inside the reactor 2 reaches the maximum value, the constant pressure valve 5 will automatically open to release the internal steam to keep the pressure inside the reactor 2 constant during operation.

[0039] It also includes a height adjustment component disposed in the external box 7, the height adjustment component including an adjustment structure and a reciprocating member, and when the adjustment structure is actuated, the movement stroke distance of the reciprocating member can be changed;

[0040] The reciprocating member includes a reciprocating plate 14 slidably disposed in the outer box 7, a connecting member 6 is fixedly disposed on the reciprocating plate 14, and a fixing ring 601 is disposed at one end of the connecting member 6 away from the reciprocating plate 14;

[0041] For details, please refer to Figure 8 、 Figure 9 The reciprocating plate 14 is symmetrically fixed with two sets of clamping rods 1402 along its length direction on one side facing the furnace wall of the reactor 2. The clamping rods 1402 are slidably set in the clamping grooves opened on the furnace wall of the reactor 2. Under the cooperation of the clamping rods 1402 and the clamping grooves, the reciprocating plate 14 can only be raised and lowered along the axial direction of the reactor 2.

[0042] The adjusting structure includes an adjusting member and a driven member. The adjusting member includes a screw rod 15 rotatably mounted on the external box 7. The screw rod 15 is provided with a threaded sleeve 23 threadedly connected thereto. The threaded sleeve 23 is rotatably mounted with a driving pulley 20.

[0043] For details, please refer to Figure 9 、 Figure 10 、 Figure 12 The above-mentioned screw rod 15 is rotatably installed in the horizontal placement groove opened on the wall of the outer accessory box 7, and is kept parallel to the ground direction, and one end of the screw rod 15 passes through the outer accessory box 7 and is coaxially fixedly connected to the knob set on the outer wall of the outer accessory box 7. In particular, two groups of clamping blocks 2301 are equidistantly arranged on the outer wall of the above-mentioned threaded sleeve 23 along its circumferential direction. The clamping blocks 2301 are slidably arranged in the clamping groove opened on the wall of the horizontal placement groove, so that when the knob is turned, the threaded sleeve 23 moves along the axial direction of the screw rod 15.

[0044] The driven member includes a slide bar 16 fixedly provided on the external accessory box 7, a spring 21 being slidably provided on the slide bar 16, one end of the spring 21 being in contact with the end of the slide bar 16, and the other end being in contact with a slider 22 slidably provided on the slide bar 16, and the slider 22 being rotatably provided with a driven pulley 18;

[0045] For details, see Figure 9 、 Figure 10 、 Figure 11 The above-mentioned slide rod 16 is fixedly set in the longitudinal placement groove opened on the wall of the outer auxiliary box 7 and remains perpendicular to the ground, and two groups of T-blocks 2201 are equidistantly set on the outer wall of the above-mentioned slider 22 along its circumferential direction. The T-blocks 2201 are slidably set in the T-slots opened on the wall of the longitudinal placement groove. With the cooperation of the T-blocks 2201 and the T-slots, the slider 22 can only slide along the axial direction of the slide rod 16.

[0046] The adjustment structure further includes a fixed pulley 19 rotatably mounted in the external box 7, the fixed pulley 19 being connected to the active pulley 20 and the passive pulley 18 via a belt 17, and a trigger rod 1701 being fixedly mounted on the belt 17, the trigger rod 1701 being slidably mounted in a movable groove 1401 provided on the reciprocating plate 14;

[0047] In summary, please refer to Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 , the above-mentioned fixed pulley 19 and the slider 22 are in the same vertical line, and the rotating shaft of the fixed pulley 19 is fixedly connected to the motor output shaft fixedly installed on the outer wall of the outer auxiliary box 7. In particular, the above-mentioned belt 17 forms a "triangle structure" under the positional relationship between the fixed pulley 19, the active pulley 20 and the passive pulley 18. In the initial state, the above-mentioned spring 21 is in a compressed state, and the threaded sleeve 23 is close to the slide bar 16. At this time, the compressed spring 21 will push the slider 22 away from the fixed pulley 19, so that the belt 17 is in a taut state. At this time, the passive pulley 18 is in contact with the fixed pulley 19. The distance between the fixed pulleys 19 is at its maximum. The motor is then started, and the motor output shaft drives the fixed pulleys 19 to continuously rotate in the same direction, thereby forcing the belt 17 to continuously rotate in the same direction. At this time, the trigger rod 1701 fixedly connected to the belt 17 will come into contact and squeeze with the groove wall of the movable groove 1401, thereby forcing the reciprocating plate 14 to rise and fall along the axial direction of the reactor 2, thereby driving the catalytic evaporation component disposed in the reactor 2 to stir and mix the sodium tungstate and the carrier material added to the reactor 2, so that the water in the sodium tungstate evaporates quickly and reacts with the carrier material to form a tungsten catalyst.

[0048] In particular, the distance that the reciprocating plate 14 rises or falls is equal to the distance between the fixed pulley 19 and the driven pulley 18. Therefore, when working, the movement stroke distance of the reciprocating plate 14 can be changed by adjusting the distance between the driven pulley 18 and the fixed pulley 19, so as to adapt to the mixture of sodium tungstate and carrier materials of different capacities in the reactor 2, so that when the reactor 2 is working, the catalytic evaporation assembly connected to the reciprocating plate 14 always moves in the reactant. In detail, before the reactor 2 works, the screw rod 15 is driven to rotate by turning the knob, which can drive the threaded sleeve 23 gradually away from the slide rod 16. At this time, under the connection action of the fixed-length belt 17, the belt 17 will pull the slider 22 gradually close to the fixed pulley 19, shortening the distance between the fixed pulley 19 and the driven pulley 18, thereby shortening the movement stroke distance of the reciprocating plate 14 to be suitable for processing between less sodium tungstate and carrier materials.

[0049] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 A calcination and drying furnace for synthesizing tungsten catalyst from sodium tungstate, further comprising a catalytic evaporation component disposed within the reactor 2, comprising a lifting structure, a stirring structure, and an energy-saving structure. When the reactor 2 is operating, the energy-saving structure operates to reuse the heat generated by the reaction.

[0050] The lifting structure includes a rotating member connected to the reciprocating member, and the stirring structure includes a stirring member connected to the rotating member. When the reciprocating member is lifted or lowered, the rotating member cooperates with a trigger member fixed in the reaction furnace 2 to rotate, and when the rotating member rotates, the stirring member rotates relative to the rotating member.

[0051] The rotating member includes a sleeve ring 13 rotatably connected to the fixed ring 601 , a protrusion 1301 is formed on the inner wall of the sleeve ring 13 , and two sets of mounting members 1302 are fixedly provided on the sleeve ring 13 at equal intervals along its circumference;

[0052] The trigger member includes a fixed rod 11 disposed in the reactor 2. A spiral groove 1101 is formed on the outer wall of the fixed rod 11. The protrusion 1301 is slidably disposed in the spiral groove 1101.

[0053] For details, please refer to Figure 3 、 Figure 5 、 Figure 7 、 Figure 8The fixed rod 11 is coaxial with the reactor 2. When the reciprocating plate 14 is lifted and lowered along the axial direction of the reactor 2 in cooperation with the trigger rod 1701 and the movable groove 1401, the fixed ring 601 fixedly connected to the reciprocating plate 14 through the connecting piece 6 will drive the sleeve ring 13 to follow the reciprocating plate 14 to rise and fall synchronously. In the process of the sleeve ring 13 rising and falling, the protrusion 1301 provided in the spiral groove 1101 will contact and squeeze with the groove wall of the spiral groove 1101, forcing the sleeve ring 13 to rotate relative to the fixed ring 601. At this time, the rotating sleeve ring 13 will drive the two sets of mounting parts 1302 to stir the sodium tungstate and the carrier material in the reactor 2, thereby accelerating the reaction between the sodium tungstate and the carrier material.

[0054] For further information, see Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 The stirring structure further includes a rotating rod 8 rotatably mounted in the reaction furnace 2, wherein a gear 9 is fixedly mounted on one end of the rotating rod 8 away from the bottom of the reaction furnace 2, and the gear 9 is engaged with a gear ring 12 fixedly mounted on the wall of the reaction furnace 2;

[0055] The stirring member includes a stirring drum 10 rotatably mounted on the mounting member 1302 , and the stirring drum 10 is slidably mounted on the rotating rod 8 ;

[0056] Specifically, a connecting rod is fixedly provided on the side of the gear 9 away from the rotating rod 8, and the connecting rod is slidably arranged in a circular slide rail provided on the top cover of the reactor 2, and two groups of protrusions 801 are formed equidistantly on the outer wall of the rotating rod 8 along its circumferential direction, and two groups of grooves 1001 adapted to the protrusions 801 are equidistantly provided on the inner wall of the mixing drum 10. Under the cooperation of the protrusions 801 and the grooves 1001, the mixing drum 10 can only slide relative to the rotating rod 8; specifically, when the sleeve ring 13 rotates, the mounting member 1302 drives the mixing drum 10 and the rotating rod 8 to rotate with the fixed rod 11 as the axis, and when the rotating rod 8 rotates, the gear 9 coaxially fixed with the rotating rod 8 drives the mixing drum 10 to rotate under the cooperation of the gear ring 12. At this time, the rotating mixing drum 10 can stir the sodium tungstate in the reactor 2, thereby increasing the contact between the sodium tungstate and the high-temperature gas generated in the reactor 2, so that the water contained in the sodium tungstate body is quickly evaporated.

[0057] The energy-saving structure includes a filter box 3 fixedly mounted on the reaction furnace 2, and the filter box 3 is connected to the reaction furnace 2 through a filter tube;

[0058] For details, please refer to Figure 1 、 Figure 2 、 Figure 3The filter box 3 is provided with a detachable and replaceable filter cotton, which can filter the water and other organic matter generated during the roasting process, so that the high-temperature gas entering the reactor 2 through the filter box 3 is close to dry and pure; and the upper end of the filter box 3 is connected with the interior of the reactor 2 through the air pump 4, and the lower end of the filter box 3 is connected with the interior of the reactor 2 through a one-way valve. The air pump 4 and the fixed pulley 19 are controlled by the same motor. After starting the motor, the air pump 4 starts working and will draw the hot steam generated in the reactor 2 into the filter box 3, and then enter the reactor 2 through the one-way valve. The filtered hot steam can accelerate the temperature rise in the reactor 2, thereby accelerating the generation efficiency of the tungsten catalyst and achieving an overall energy-saving effect.

[0059] In summary, by providing the height adjustment component and the catalytic evaporation component and utilizing the cooperation between the two, when in use, the motor is started, and the motor drives the belt 17 to rotate continuously in the same direction. At this time, the rotating belt 17 drives the reciprocating plate 14 to rise and fall. At this time, the sleeve ring 13 sleeved on the fixed rod 11 and connected to the reciprocating plate 14 will drive the mixing drum 10 to rotate around the fixed rod 11 as the axis in the reactor 2 and rise and fall at the same time under the cooperation of the spiral groove 1101 and the protrusion 1301. When the mixing drum 10 rotates around the fixed rod 11 as the axis, due to the cooperation of the rotating rod 8, the gear 9 and the gear ring 12, the mixing drum 10 can simultaneously rotate. Under the cooperation of the above multiple relationships, the mixing drum 10 can be used to stir the sodium tungstate and the carrier material in the reactor 2, thereby increasing the contact area between the sodium tungstate and the high-temperature air in the reactor 2, thereby accelerating the evaporation rate of the water in the sodium tungstate, and at the same time accelerating the reaction between the sodium tungstate and the carrier material, thereby quickly synthesizing the tungsten catalyst.

[0060] At the same time, when the belt 17 is working, the energy-saving structure provided on the reactor 2 works, and the high-temperature gas generated in the reactor 2 can be drawn into the filter box 3 for filtration, and then the filtered high-temperature gas is re-input into the reactor 2 to accelerate the temperature rise in the reactor 2, reduce the energy consumption when the reactor 2 is heated, and enable the moisture in the sodium tungstate to be evaporated quickly.

[0061] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0062] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A roasting and drying furnace for synthesizing tungsten catalyst from sodium tungstate, comprising a truss (1), a reaction furnace (2) fixedly arranged on the truss (1), and an external box (7) fixedly arranged on the reaction furnace (2); Its characteristics are: It also includes a height adjustment component arranged in the external box (7), the height adjustment component includes an adjustment structure and a reciprocating member, and when the adjustment structure is actuated, the movement stroke distance of the reciprocating member can be changed; A catalytic evaporation component is arranged in the reaction furnace (2), and comprises a lifting structure, a stirring structure and an energy-saving structure. When the reaction furnace (2) is working, the energy-saving structure is activated to reuse the heat generated by the reaction; The lifting structure includes a rotating member connected to the reciprocating member, and the stirring structure includes a stirring member connected to the rotating member. When the reciprocating member is lifted and lowered, the rotating member cooperates with a trigger member fixedly arranged in the reaction furnace (2) to rotate, and when the rotating member rotates, the stirring member rotates relative to the rotating member. The reciprocating member comprises a reciprocating plate (14) slidably arranged in the external box (7), a connecting member (6) is fixedly arranged on the reciprocating plate (14), and a fixing ring (601) is provided at one end of the connecting member (6) away from the reciprocating plate (14); The regulating structure comprises a regulating member and a driven member, wherein the regulating member comprises a screw rod (15) rotatably mounted on the external box (7), a threaded sleeve (23) threadedly connected to the screw rod (15) is provided, and a driving pulley (20) is rotatably mounted on the threaded sleeve (23); The driven member includes a slide bar (16) fixedly arranged on the external box (7), a spring (21) slidably arranged on the slide bar (16), one end of the spring (21) abuts against the end of the slide bar (16), and the other end abuts against a slider (22) slidably arranged on the slide bar (16), and the slider (22) is rotatably mounted with a driven pulley (18); The adjustment structure further comprises a fixed pulley (19) rotatably mounted in the external box (7), the fixed pulley (19) being connected to the active pulley (20) and the passive pulley (18) via a belt (17), and a trigger rod (1701) being fixedly mounted on the belt (17), the trigger rod (1701) being slidably mounted in a movable groove (1401) provided on the reciprocating plate (14); The rotating member comprises a sleeve ring (13) rotatably connected to the fixed ring (601), a protrusion (1301) is formed on the inner wall of the sleeve ring (13), and two groups of mounting members (1302) are fixedly provided at equal intervals along the circumference of the sleeve ring (13); The triggering member comprises a fixing rod (11) arranged in the reaction furnace (2), a spiral groove (1101) is provided on the outer wall of the fixing rod (11), and the protrusion (1301) is slidably arranged in the spiral groove (1101).

2. The roasting and drying furnace for synthesizing tungsten catalyst from sodium tungstate according to claim 1, characterized in that: The stirring structure further comprises a rotating rod (8) rotatably mounted in the reaction furnace (2), wherein a gear (9) is fixedly mounted on one end of the rotating rod (8) away from the bottom of the reaction furnace (2), and the gear (9) is meshed with a gear ring (12) fixedly mounted on the wall of the reaction furnace (2).

3. The roasting and drying furnace for synthesizing tungsten catalyst from sodium tungstate according to claim 2, characterized in that: The stirring member comprises a stirring drum (10) rotatably mounted on the mounting member (1302), and the stirring drum (10) is slidably arranged on the rotating rod (8).

4. The roasting and drying furnace for synthesizing tungsten catalyst from sodium tungstate according to claim 1, characterized in that: The energy-saving structure comprises a filter box (3) fixedly mounted on the reaction furnace (2), and the filter box (3) is connected to the reaction furnace (2) via a filter tube.

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