阅读说明：本技术 一种建筑石膏板快速干燥煅烧机 (Building gypsum board rapid draing calcining machine ) 是由 向聪 王珊 于 2021-07-27 设计创作，主要内容包括：本发明公开了一种建筑石膏板快速干燥煅烧机,涉及煅烧机技术领域,包括热源箱,所述热源箱的一侧安装有煅烧筒体,且煅烧筒体的一侧设置有出料箱,所述出料箱的一侧固定有固定箱,所述煅烧筒体的下方设置有动力机构,且煅烧筒体的外壁安装有传动机构,所述传动机构的一侧位于煅烧筒体的外壁设置有余热回收机构。本发明通过设置连接轴、转盘、调向板、移动槽、移动杆、限位筒、连接杆、楔形块、二号楔形块、螺旋叶片、支撑板、调向孔和疏通杆,有效解决了出料口堵塞的问题；通过设置主动锥形齿轮、调向锥形齿轮、从动锥形齿轮、固定杆、集热壁、预热箱、环形导热板、均热板、流动腔和扰流块,有效解决了散发的热能无法有效利用的问题。(The invention discloses a quick drying and calcining machine for building gypsum boards, which relates to the technical field of calcining machines and comprises a heat source box, wherein a calcining cylinder is arranged on one side of the heat source box, a discharging box is arranged on one side of the calcining cylinder, a fixing box is fixed on one side of the discharging box, a power mechanism is arranged below the calcining cylinder, a transmission mechanism is arranged on the outer wall of the calcining cylinder, and a waste heat recovery mechanism is arranged on one side of the transmission mechanism, which is positioned on the outer wall of the calcining cylinder. The invention effectively solves the problem of blockage of the discharge hole by arranging the connecting shaft, the rotary table, the direction adjusting plate, the moving groove, the moving rod, the limiting cylinder, the connecting rod, the wedge block, the second wedge block, the helical blade, the supporting plate, the direction adjusting hole and the dredging rod; through setting up initiative conical gear, transferring to conical gear, driven conical gear, dead lever, heat collection wall, preheating cabinet, annular heat-conducting plate, soaking plate, flow chamber and vortex block, effectively solved the unable effectively utilized problem of the heat energy that gives off.)

1. The utility model provides a building gypsum board rapid draing calcines machine, includes heat source case (1), its characterized in that: a calcining cylinder body (2) is installed on one side of the heat source box (1), a discharging box (8) is arranged on one side of the calcining cylinder body (2), a fixed box (3) is fixed on one side of the discharging box (8), a power mechanism (4) is arranged below the calcining cylinder body (2), a transmission mechanism (6) is installed on the outer wall of the calcining cylinder body (2), a waste heat recovery mechanism (7) is arranged on the outer wall of the calcining cylinder body (2) on one side of the transmission mechanism (6), and a discharging hole (9) is formed below the discharging box (8);

the power mechanism (4) comprises a base (401) fixed with a fixed object, a power gear (403) is installed on the inner side of the base (401), a large-scale rotating motor (402) is installed on one side of the power gear (403), a connecting shaft (404) is fixed on the other side of the power gear (403), a turntable (405) is fixed on one side of the connecting shaft (404), a direction adjusting plate (406) is arranged on one side end face of the turntable (405), a moving groove (407) is formed in the inner wall of the direction adjusting plate (406), a moving rod (408) is arranged on the inner wall of the moving groove (407), and a limiting cylinder (409) is arranged on the outer wall of the moving rod (408);

the transmission mechanism (6) comprises a driving bevel gear (601) fixed with the outer wall of the calcining cylinder body (2), a direction-adjusting bevel gear (602) is installed at the top end of the driving bevel gear (601), a driven bevel gear (603) is installed on one side of the direction-adjusting bevel gear (602), and a fixing rod (604) is fixed on one side of the driven bevel gear (603);

waste heat recovery mechanism (7) including with calcine barrel (2) outer wall fixed heat collection wall (701), and the outside of heat collection wall (701) is provided with preheating cabinet (702), the inner wall of heat collection wall (701) is provided with annular heat-conducting plate (703) with the laminating department of calcining barrel (2) outer wall, and one side of annular heat-conducting plate (703) is provided with soaking board (704), mobile chamber (705) have been seted up to the inside of preheating cabinet (702), and the inner wall of preheating cabinet (702) is fixed with turbulent flow piece (706), chamber door (707) are installed to the outer wall of preheating cabinet (702).

2. The building gypsum board flash drying and calcining machine of claim 1, wherein: the box door (707) is rotatably connected with the preheating box (702) through a hinge, the driving bevel gear (601) is fixedly connected with the outer wall of the calcining barrel body (2), the driven bevel gear (603) is rotatably connected with the outer wall of the calcining barrel body (2) through a bearing, the driven bevel gear (603) and the driving bevel gear (601) are both connected with the direction-adjusting bevel gear (602) through gear engagement, the driven bevel gear (603) is fixedly connected with the fixing rod (604), and the fixing rod (604) is fixedly connected with the preheating box (702).

3. The building gypsum board flash drying and calcining machine of claim 1, wherein: the outer wall of carriage release lever (408) agrees with mutually with the inner wall of shifting chute (407), large-scale rotating electrical machines (402) pass through shaft coupling fixed connection with power gear (403), and power gear (403) pass through the bearing rotation with base (401) and be connected, large-scale rotating electrical machines (402) pass through support mounting fixed connection with base (401), connecting axle (404) pass through shaft coupling fixed connection with power gear (403), and connecting axle (404) pass through bolt fixed connection with carousel (405), power gear (403) pass through gear engagement with accent to conical gear (602) and be connected.

4. The building gypsum board flash drying and calcining machine of claim 1, wherein: the outer wall of the moving rod (408) is matched with the outer wall of the limiting cylinder (409), and an anti-blocking mechanism (5) is arranged above the limiting cylinder (409) and below the discharge hole (9).

5. The building gypsum board flash drying and calcining machine of claim 4, wherein: prevent blockking up mechanism (5) including extending to inside dredging rod (504) of discharge gate (9), and the bottom mounting of dredging rod (504) has No. two wedge (503), the below of No. two wedge (503) is provided with wedge (502), and the bottom mounting of wedge (502) has connecting rod (501) that link to each other with carriage release lever (408), the bottom mounting of wedge (502) has backup pad (506) fixed mutually with spacing section of thick bamboo (409) top, the hole (507) of transferring to has been seted up to the inner wall of dredging rod (504).

6. The building gypsum board flash drying and calcining machine of claim 5, wherein: transfer to the inner wall of hole (507) and the outer wall phase-match of helical blade (505), and dredge pole (504) and cup joint in the outer wall of helical blade (505), dredge pole (504) and No. two wedge blocks (503) and pass through the bearing rotation and be connected, and the inclined plane of one side of No. two wedge blocks (503) agrees with mutually with the inclined plane of one side of wedge block (502).

7. The building gypsum board flash drying and calcining machine of claim 1, wherein: the annular heat conducting plate (703) is fixedly connected with the outer wall of the calcining barrel body (2) through bolts, the soaking plate (704) is fixedly connected with the annular heat conducting plate (703) through bolts, and the inclination angle between the flow disturbing block (706) and the inner wall of the preheating box (702) is forty-five degrees to sixty degrees.

Technical Field

The invention relates to the technical field of calcining machines, in particular to a quick drying calcining machine for building gypsum boards.

Background

The gypsum board is one of the new light boards developed mainly, and has been widely used in inner partition, wall covering, ceiling, sound absorbing board, floor board, decorative board, etc. of various buildings, including house, office building, shop, hotel, industrial factory building, etc. the gypsum board has two crystal waters, only one semi-crystalline water is removed to form semi-hydrated calcium sulfate and the other semi-crystalline water is removed to form gypsum.

At present, in the process of calcining gypsum, after gypsum powder is dried and dehydrated at high temperature in a calcining machine, the dehydrated gypsum, namely semi-hydrated gypsum, is gradually output through a discharge port under the action of the inner wall of the calcining machine, and the semi-hydrated gypsum is powdery, so that the discharge port of the calcining machine is easy to block, the blanking speed of the semi-hydrated gypsum is greatly reduced, a large amount of powder can be accumulated at the discharge port, the use of calcining machine equipment is influenced, and the production efficiency of the gypsum is also reduced; secondly, the dry dehydration technique that current calcining machine adopted is generally for the direct contact of the high temperature hot flue gas that produces behind the fuel burning and gypsum raw materials, thereby accomplish the calcination dehydration of material, and calcining machine's barrel is generally made for the metal material, consequently calcining machine outer wall can absorb the inside heat of calcining machine and outside conduction under the effect of heat radiation, lead to this partial heat to be wasted, for this reason need a waste heat recovery device to promote the overall utilization ratio of heat energy, thereby also realize green production's environmental protection theory to a certain extent when practicing thrift the cost.

Disclosure of Invention

The invention aims to: in order to solve the problem that the existing calcining machine has the defects that a discharge port is blocked and the emitted heat energy cannot be effectively utilized, the building gypsum board rapid drying calcining machine is provided.

In order to achieve the purpose, the invention provides the following technical scheme: a quick drying and calcining machine for building gypsum boards comprises a heat source box, wherein a calcining barrel is mounted on one side of the heat source box, a discharging box is arranged on one side of the calcining barrel, a fixed box is fixed on one side of the discharging box, a power mechanism is arranged below the calcining barrel, a transmission mechanism is mounted on the outer wall of the calcining barrel, a waste heat recovery mechanism is arranged on the outer wall of the calcining barrel on one side of the transmission mechanism, and a discharging hole is formed below the discharging box;

the power mechanism comprises a base fixed with a fixed object, a power gear is mounted on the inner side of the base, a large-scale rotating motor is mounted on one side of the power gear, a connecting shaft is fixed on the other side of the power gear, a rotary table is fixed on one side of the connecting shaft, a direction adjusting plate is arranged on the end face of one side of the rotary table, a moving groove is formed in the inner wall of the direction adjusting plate, a moving rod is arranged on the inner wall of the moving groove, and a limiting cylinder is arranged on the outer wall of the moving rod;

the transmission mechanism comprises a driving conical gear fixed with the outer wall of the calcining cylinder, the top end of the driving conical gear is provided with a direction-adjusting conical gear, one side of the direction-adjusting conical gear is provided with a driven conical gear, and one side of the driven conical gear is fixed with a fixed rod;

the waste heat recovery mechanism is including the thermal-arrest wall of calcining the barrel outer wall and fixing, and the outside of thermal-arrest wall is provided with the preheating cabinet, the inner wall of thermal-arrest wall is provided with annular heat-conducting plate with the laminating department of calcining the barrel outer wall, and one side of annular heat-conducting plate is provided with the soaking plate, mobile chamber has been seted up to the inside of preheating cabinet, and the inner wall of preheating cabinet is fixed with the spoiler, the chamber door is installed to the outer wall of preheating cabinet.

Preferably, the chamber door passes through hinge rotation with the preheating cabinet and is connected, initiative conical gear and the outer wall fixed connection who calcines the barrel, driven conical gear passes through the bearing rotation with the outer wall of calcining the barrel and is connected, driven conical gear and initiative conical gear all pass through gear engagement with the direction-adjusting conical gear and are connected, driven conical gear and dead lever fixed connection, and dead lever and preheating cabinet fixed connection.

Preferably, the outer wall of the moving rod is matched with the inner wall of the moving groove, the large-scale rotating motor is fixedly connected with the power gear through a coupler, the power gear is rotatably connected with the base through a bearing, the large-scale rotating motor is fixedly connected with the base through a support, the connecting shaft is fixedly connected with the power gear through the coupler, the connecting shaft is fixedly connected with the turntable through a bolt, and the power gear is connected with the direction-adjusting conical gear through gear engagement.

Preferably, the outer wall of the moving rod is matched with the outer wall of the limiting cylinder, and an anti-blocking mechanism is arranged above the limiting cylinder and below the discharge port.

Preferably, prevent blockking up the mechanism including extending to the inside dredge pole of discharge gate, and the bottom mounting of dredge pole has No. two wedges, the below of No. two wedges is provided with the wedge, and the bottom mounting of wedge has the connecting rod that links to each other with the carriage release lever, the bottom mounting of wedge has the backup pad of fixing with spacing barrel top, the hole of turning to has been seted up to the inner wall of dredge pole.

Preferably, the inner wall of accent to the hole matches with helical blade's outer wall, and dredge the pole cup joint in helical blade's outer wall, dredge the pole and pass through the bearing rotation with No. two wedge and be connected, and the inclined plane of one side of No. two wedge agrees with mutually with the inclined plane of one side of wedge.

Preferably, the annular heat conducting plate is fixedly connected with the outer wall of the calcining cylinder body through bolts, the soaking plate is fixedly connected with the annular heat conducting plate through bolts, and the inclination angle between the flow disturbing block and the inner wall of the preheating box is forty-five degrees to sixty degrees.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention is through setting up the connecting axle, rotary table, direction-adjusting plate, shifting chute, travel bar, spacing cylinder, tie rod, wedge, No. two wedge, helical blade, shoe plate, direction-adjusting hole and dredge lever, first of all, start the large-scale rotating electrical machines, the output end of the large-scale rotating electrical machines will drive the power gear to rotate, make the power gear realize the rotation to the calcining cylinder, because the connecting axle is fixedly connected with power gear, will drive the shaft coupling to rotate together after the power gear rotates, and then the shaft coupling drives the rotary table to rotate, will drive the direction-adjusting plate to rotate after the rotary table rotates, the travel bar slides in the shifting chute of the inboard wall of direction-adjusting plate under the influence of spacing cylinder at this moment, when the higher position of direction-adjusting plate rotates to and contacts with travel bar, the direction-adjusting plate will push the travel bar to move to one side, at this moment the travel bar stretches the reset spring and moves to one side close to the discharge gate, the connecting rod at the top end of the moving rod can be driven to move after the moving rod moves, the wedge block at the top end of the connecting rod can extrude the second wedge block to one side, the second wedge block can move upwards along the outer wall of the spiral blade under the extrusion of the wedge block, the dredging rod can rotate while moving upwards due to the fact that the inner wall of the dredging rod is provided with the direction adjusting hole matched with the spiral blade, when the lower part of the direction adjusting plate moves to be contacted with the moving rod, the moving rod can reset under the reset action of the reset spring, the dredging rod moves downwards along the outer wall of the spiral blade, the dredging rod can reversely rotate while moving downwards due to the fact that the direction adjusting hole matched with the spiral blade is formed in the inner wall of the dredging rod, and the rotary disc rotates in a reciprocating mode, therefore, the moving rod can continuously realize reciprocating movement, and therefore the dredging rod can repeatedly perform vertical linear movement and rotation, the dredging rod moves up and down in a reciprocating manner and rotates, so that the dredging function of the discharge port can be well realized, the discharge port is prevented from being blocked, and the problem of blockage of the discharge port is effectively solved;

2. the invention arranges the driving conical gear, the direction-adjusting conical gear, the driven conical gear, the fixed rod, the heat collecting wall, the preheating box, the annular heat conducting plate, the soaking plate, the flowing cavity and the turbulence block, when the calcining cylinder rotates, the driving conical gear on the outer wall of the calcining cylinder rotates along with the calcining cylinder, so the driving conical gear can drive the direction-adjusting conical gear to rotate under the action of the meshing of the gears, the direction-adjusting conical gear can drive the driven conical gear to rotate in the opposite direction of the calcining cylinder, therefore, the driven conical gear drives the preheating box to rotate through the fixed shaft, the heat emitted from the outer wall of the calcining cylinder can be led out to the soaking plate through the annular heat conducting plate, the soaking plate realizes the preheating effect on the gypsum in the preheating box, because the inner wall of the preheating box is fixed with a plurality of groups of turbulence blocks, the turbulence blocks can drive the gypsum to move to the highest position of the preheating box in the rotating process of the preheating box, the gypsum falls on the soaking board surface and falls into the preheating cabinet bottom again under the effect of self gravity afterwards, and the circulation that reciprocates for the gypsum can be continuous with the different terminal surface departments of soaking board contact, promotes the preheating effect of gypsum, makes preheating effect better, when facilitating for follow-up calcination technology, has also practiced thrift the energy resource consumption of calcining machine, has carried out effectual utilization to the waste heat especially, has effectively solved the unable effectively utilized problem of the heat energy that gives off.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the transmission mechanism of the present invention;

FIG. 3 is a top view of the turntable configuration of the present invention;

FIG. 4 is an enlarged view of a portion of the present invention at A in FIG. 1;

FIG. 5 is a cross-sectional view of a pull through of the present invention;

FIG. 6 is a side cross-sectional view of the waste heat recovery mechanism of the present invention;

fig. 7 is a three-dimensional mechanism diagram of the wedge block of the present invention.

In the figure: 1. a heat source box; 2. calcining the cylinder; 3. a fixed box; 4. a power mechanism; 401. a base; 402. a large-sized rotating electrical machine; 403. a power gear; 404. a connecting shaft; 405. a turntable; 406. a direction adjusting plate; 407. a moving groove; 408. a travel bar; 409. a limiting cylinder; 5. an anti-clogging mechanism; 501. a connecting rod; 502. a wedge block; 503. a second wedge block; 504. dredging the rod; 505. a helical blade; 506. a support plate; 507. adjusting the direction hole; 6. a transmission mechanism; 601. a driving bevel gear; 602. a direction-adjusting conical gear; 603. a driven bevel gear; 604. fixing the rod; 7. a waste heat recovery mechanism; 701. a heat collecting wall; 702. a preheating box; 703. an annular heat conducting plate; 704. a vapor chamber; 705. a flow chamber; 706. a flow disturbing block; 707. a box door; 8. a discharging box; 9. and (4) a discharge port.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall structure.

Referring to fig. 1-7, a quick drying and calcining machine for building gypsum boards comprises a heat source box 1, a calcining cylinder 2 is installed on one side of the heat source box 1, a discharging box 8 is arranged on one side of the calcining cylinder 2, a fixing box 3 is fixed on one side of the discharging box 8, a power mechanism 4 is arranged below the calcining cylinder 2, a transmission mechanism 6 is installed on the outer wall of the calcining cylinder 2, a waste heat recovery mechanism 7 is arranged on one side of the transmission mechanism 6, which is located on the outer wall of the calcining cylinder 2, and a discharging port 9 is formed below the discharging box 8;

the power mechanism 4 comprises a base 401 fixed with a fixed object, a power gear 403 is installed on the inner side of the base 401, a large-scale rotating motor 402 is installed on one side of the power gear 403, a connecting shaft 404 is fixed on the other side of the power gear 403, a rotating disc 405 is fixed on one side of the connecting shaft 404, a direction adjusting plate 406 is arranged on one side end face of the rotating disc 405, a moving groove 407 is formed in the inner wall of the direction adjusting plate 406, a moving rod 408 is arranged on the inner wall of the moving groove 407, and a limiting cylinder 409 is arranged on the outer wall of the moving rod 408;

the transmission mechanism 6 comprises a driving bevel gear 601 fixed with the outer wall of the calcining cylinder 2, a direction-adjusting bevel gear 602 is installed at the top end of the driving bevel gear 601, a driven bevel gear 603 is installed at one side of the direction-adjusting bevel gear 602, and a fixing rod 604 is fixed at one side of the driven bevel gear 603;

the waste heat recovery mechanism 7 comprises a heat collecting wall 701 fixed with the outer wall of the calcining cylinder 2, a preheating box 702 is arranged on the outer side of the heat collecting wall 701, an annular heat conducting plate 703 is arranged at the joint of the inner wall of the heat collecting wall 701 and the outer wall of the calcining cylinder 2, a soaking plate 704 is arranged on one side of the annular heat conducting plate 703, a flowing cavity 705 is formed in the preheating box 702, a flow disturbing block 706 is fixed on the inner wall of the preheating box 702, and a box door 707 is installed on the outer wall of the preheating box 702.

Please refer to fig. 1, the box door 707 is rotatably connected to the preheating box 702 through a hinge, the driving bevel gear 601 is fixedly connected to the outer wall of the calcining cylinder 2, the driven bevel gear 603 is rotatably connected to the outer wall of the calcining cylinder 2 through a bearing, the driven bevel gear 603 and the driving bevel gear 601 are both connected to the direction-adjusting bevel gear 602 through gear engagement, the driven bevel gear 603 is fixedly connected to the fixing rod 604, and the fixing rod 604 is fixedly connected to the preheating box 702, so as to facilitate the opening and closing of the box door 707, so that the calcining cylinder 2 drives the driving bevel gear 601 to rotate, so that the driving bevel gear 601 drives the direction-adjusting bevel gear 602 to rotate through gear engagement, and the direction-adjusting bevel gear 602 drives the driven bevel gear 603 to rotate in the opposite direction to the calcining cylinder through gear engagement.

Please refer to fig. 1 and 2, the outer wall of the moving rod 408 fits with the inner wall of the moving slot 407, the large rotating motor 402 is fixedly connected with the power gear 403 through a coupler, the power gear 403 is rotatably connected with the base 401 through a bearing, the large rotating motor 402 is fixedly connected with the base 401 through a bracket, the connecting shaft 404 is fixedly connected with the power gear 403 through a coupler, the connecting shaft 404 is fixedly connected with the turntable 405 through a bolt, the power gear 403 is engaged with the direction-adjusting conical gear 602 through a gear, so that the moving rod 408 can slide on the inner wall of the moving slot 407, the large rotating motor 402 can drive the power gear 403 to rotate, the power gear 403 drives the connecting shaft 404 to rotate, and finally the rotation of the turntable 405 is realized, and the power gear 403 can realize the rotary calcination function of the calcination cylinder 2 through the meshing effect of the gear.

Please refer to fig. 2 and 3, the outer wall of the moving rod 408 fits with the outer wall of the limiting cylinder 409, and the anti-blocking mechanism 5 is disposed above the limiting cylinder 409 and below the discharge hole 9, so that the moving rod 408 can realize the linear reciprocating movement of the moving rod under the limitation of the limiting cylinder 409.

Please refer to fig. 4, the anti-clogging mechanism 5 includes a dredging rod 504 extending to the inside of the discharge hole 9, a second wedge-shaped block 503 is fixed at the bottom end of the dredging rod 504, a wedge-shaped block 502 is arranged below the second wedge-shaped block 503, a connecting rod 501 connected with the moving rod 408 is fixed at the bottom end of the wedge-shaped block 502, a supporting plate 506 fixed with the top end of the limiting cylinder 409 is fixed at the bottom end of the wedge-shaped block 502, and a direction-adjusting hole 507 is formed in the inner wall of the dredging rod 504.

Please refer to fig. 4 and 5, the inner wall of the direction-adjusting hole 507 is matched with the outer wall of the helical blade 505, the dredging rod 504 is sleeved on the outer wall of the helical blade 505, the dredging rod 504 is rotatably connected with the second wedge-shaped block 503 through a bearing, and the inclined surface of one side of the second wedge-shaped block 503 is matched with the inclined surface of one side of the wedge-shaped block 502, so that the dredging rod 504 can rotate under the outer wall of the helical blade 505 through the direction-adjusting hole 507 of the inner wall of the dredging rod 504 in the process of moving upwards or downwards, thereby improving the dredging effect.

Referring to fig. 6, the annular heat conducting plate 703 is fixedly connected to the outer wall of the calcining cylinder 2 by bolts, the soaking plate 704 is fixedly connected to the annular heat conducting plate 703 by bolts, and the inclined angle between the spoiler 706 and the inner wall of the preheating chamber 702 is forty-five degrees to sixty degrees, which is convenient for the installation and fixation of the annular heat conducting plate 703 and the soaking plate 704.

The working principle is as follows: firstly, gypsum to be calcined is added into a calcining cylinder 2, a large rotating motor 402 is started, the output end of the large rotating motor 402 drives a power gear 403 to rotate, so that the power gear 403 realizes the rotation of the calcining cylinder 2, the power gear 403 drives a connecting shaft 404 to rotate after rotating because the connecting shaft 404 is fixedly connected with the power gear 403, and then the connecting shaft 404 drives a turntable 405 to rotate, the turntable 405 drives a direction adjusting plate 406 to rotate after rotating, at the moment, a moving rod 408 slides in a moving groove 407 on the inner wall of the direction adjusting plate 406 under the action of a limiting cylinder 409, when the higher position of the direction adjusting plate 406 rotates to a contact position with the moving rod 408, the direction adjusting plate 406 extrudes the moving rod 408 to move towards one side, at the moment, the moving rod 408 stretches a return spring and moves towards one side close to a discharge hole 9, the connecting rod 501 at the top end of the moving rod 408 is driven to move after moving rod 408 moves, the wedge block 502 at the top end of the connecting rod 501 presses the second wedge block 503 to one side, the second wedge block 503 moves upwards along the outer wall of the spiral blade 505 under the extrusion of the wedge block 502, the dredging rod 504 rotates while moving upwards due to the fact that the inner wall of the dredging rod 504 is provided with the direction adjusting hole 507 matched with the spiral blade 505, when the direction adjusting plate 406 moves to be in contact with the moving rod 408 from the lower position, the moving rod 408 resets under the resetting action of the resetting spring, at the moment, the dredging rod 504 moves downwards along the outer wall of the spiral blade 505, the dredging rod 504 moves downwards due to the fact that the inner wall of the dredging rod 504 is provided with the direction adjusting hole 507 matched with the spiral blade 505, the dredging rod 504 rotates reversely while moving downwards, and due to the reciprocating rotation of the turntable 405, the moving rod 408 can continuously realize reciprocating movement, and therefore the dredging rod 504 can repeatedly perform vertical linear movement and rotation, the dredging rod 504 moves up and down in a reciprocating way and rotates, so that the dredging function of the discharge port 9 can be well played, the situation that the discharge port 9 is blocked is avoided, then a large amount of high-temperature smoke dust generated when fuel in the heat source box 1 is burnt can be introduced into the calcining cylinder 2, the gypsum can be dehydrated through the direct heat exchange function, when the calcining cylinder 2 rotates, the driving bevel gear 601 positioned on the outer wall of the calcining cylinder 2 can rotate along with the calcining cylinder 2, therefore, the driving bevel gear 601 can drive the direction-adjusting bevel gear 602 to rotate under the meshing action of the gears, the direction-adjusting bevel gear 602 can drive the driven bevel gear 603 to rotate in the direction opposite to that of the calcining cylinder 2, therefore, the driven bevel gear 603 drives the preheating box 702 to rotate through the fixing rod 604, and heat emitted by the outer wall of the calcining cylinder 2 can be led out to the soaking plate 704 through the annular heat conducting plate 703, the soaking plate 704 realizes the preheating effect on the gypsum in the preheating box 702, and as the inner wall of the preheating box 702 is fixed with a plurality of groups of turbulence blocks 706, the turbulence blocks 706 can drive the gypsum in the flowing cavity 705 to move to the highest position of the preheating box 702 in the rotating process of the preheating box 702, and then the gypsum falls on the surface of the soaking plate 704 and falls into the bottom end of the preheating box 702 again under the action of self gravity, and the gypsum circulates in a reciprocating way, so that the gypsum can be continuously contacted with the end faces of different positions of the soaking plate 704, and the preheating effect of the gypsum is improved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.