Calcination conveyor for preparing building gypsum powder

Abstract

The utility model provides a calcining conveyor for preparing building gypsum powder. The calcining conveyor for preparing the building gypsum powder comprises a bottom plate, the top of the bottom plate is fixedly connected with a calcining furnace through a supporting column, the left side of the top of the calcining furnace is fixedly connected with a preheating box, preheating pipes are arranged on the two sides of the inner wall of the preheating box, and a spiral pipe is arranged in the preheating box; one end of the spiral pipe penetrates through the preheating box and extends out of the preheating box, and the other end of the spiral pipe communicates with a guide pipe. According to the calcining conveyor for preparing the building gypsum powder, high-temperature gas generated by calcining gypsum in the calcining furnace is discharged into the spiral pipe through the guide pipe, the gypsum stored in the preheating box is preheated through the spiral pipe and the preheating pipe, heat of the high-temperature gas generated during calcining of the gypsum is recycled, and the heat of the high-temperature gas is recycled. The device is used for preheating to-be-calcined gypsum, heat loss is reduced, and energy conservation and emission reduction are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of gypsum powder production especially relates to a preparation building gypsum powder calcining feeder. BACKGROUND

[0002] The main component of chemical gypsum such as phosphogypsum and natural gypsum is calcium sulfate dihydrate, in order to make it into a building material with practical value, it must be made into hemihydrate gypsum by removing part of the crystal water, which is called gypsum calcination, and the current gypsum calcination process is mainly as follows: first, the phosphogypsum with high free water is transported to a hammer dryer, and the phosphogypsum is mixed, scattered, dried and dehydrated in the hammer dryer to produce gypsum powder with free water removed; then the gypsum powder is transported to a boiling calcining furnace for further calcination to produce qualified building gypsum powder.

[0003] According to the search, the publication number is CN217499088U, which discloses a calcining device for producing building gypsum powder, a stirring rod parallel to the rotating shaft is arranged in the gap of the spiral blade, and the two ends of the stirring rod are welded on the surface of the spiral blade. The top of the calcining chamber is provided with a feeding port and a flame port, the feeding port is located on the feeding side of the spiral blade, and the flame port is in communication with the gap of the spiral blade. The top of the box body is provided with a combustion machine, and the nozzle of the combustion machine is arranged in the flame port. The bottom of the calcining chamber is provided with a discharge port, and the discharge port is located on the discharge side of the spiral blade. The utility model has the beneficial effects that: by arranging the stirring rod parallel to the rotating shaft in the gap of the spiral blade, the stirring rod is also rotated when the rotating shaft rotates, the gypsum in the gap of the spiral blade is stirred, the gypsum is more uniform and sufficient during calcination, and is not easy to form clumps. Moreover, the heat of the spiral blade is conducted to the stirring rod, which can improve the efficiency of removing one and a half crystal water from the gypsum, and the calcination efficiency of the gypsum is higher.

[0004] In the use process of the above-mentioned device, high-temperature steam will be generated during gypsum calcination, but the high-temperature steam is not treated and directly discharged, which causes heat loss and is not conducive to energy saving and environmental protection.

[0005] Therefore, it is necessary to provide a calcining feeder for preparing building gypsum powder to solve the above technical problems. UTILITY MODEL CONTENTS

[0006] The utility model provides a calcining feeder for preparing building gypsum powder, which solves the problem that in the use process of the existing device, high-temperature steam will be generated during gypsum calcination, but the high-temperature steam is not treated and directly discharged, which causes heat loss and is not conducive to energy saving and environmental protection.

[0007] To solve the above technical problems, the utility model provides a preparation building gypsum powder calcining feeder, include: bottom plate, the top of bottom plate is fixedly connected with calcining furnace through support column, the left side of calcining furnace top is fixedly connected with preheating box, both sides of preheating box inner wall all are provided with preheating pipe, the inside of preheating box is provided with spiral tube, one end of spiral tube penetrates preheating box and extends to the outside of preheating box, the other end of spiral tube is connected with the pipe, one end of pipe penetrates preheating box and calcining furnace and extends to the inside of calcining furnace, the top of calcining furnace is provided with closing mechanism.

[0008] Preferably, the closing mechanism includes a support frame, one side of the bottom of the support frame is fixedly connected with a support block, one side of the support frame is fixedly connected with a rotating motor, the output shaft of the rotating motor is fixedly connected with a threaded rod, the surface of the threaded rod is threadedly connected with a threaded block, the top of the threaded block is slidably connected with the bottom of the support frame, the bottom of the threaded block is fixedly connected with a cover plate, one side of the cover plate penetrates the preheating box and extends into the inside of the preheating box.

[0009] Preferably, one side of the calcining furnace is fixedly connected with a stirring motor through a support block, the output shaft of the stirring motor is fixedly connected with a stirring shaft, one end of the stirring shaft penetrates the calcining furnace and extends into the inside of the calcining furnace, one end of the stirring shaft is rotatably connected with one side of the inner wall of the calcining furnace, the surface of the stirring shaft is provided with stirring blades, both sides of the inner wall of the calcining furnace are provided with heating pipes.

[0010] Preferably, the right side of the top of the bottom plate is fixedly connected with a conveying frame, one side of the conveying frame is fixedly connected with a conveying motor, the output shaft of the conveying motor is fixedly connected with a spiral rod, one end of the spiral rod penetrates the conveying frame and extends into the inside of the conveying frame.

[0011] Preferably, the right side of the bottom of the calcining furnace and the left side of the top of the conveying frame are communicated with a discharge pipe, a valve is arranged on the discharge pipe.

[0012] Preferably, openings are formed on the calcining furnace and the preheating box, and guide blocks are fixedly arranged on the bottom of the inner wall of the calcining furnace.

[0013] Compared with the related art, the preparation building gypsum powder calcining feeder has the following beneficial effects:

[0014] The utility model provides a preparation building gypsum powder calcining feeder, and the high temperature gas generated by calcining gypsum in the calcining furnace is discharged into the spiral tube through the pipe, the gypsum stored in the preheating box is preheated through the spiral tube and the preheating pipe, the heat recovery of the high temperature gas generated during the calcination of the gypsum is used for preheating the gypsum to be calcined, the heat loss is reduced, and the energy saving and emission reduction are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A preferred embodiment structure diagram of the building gypsum powder calcination feeder provided by the utility model is shown in the figure.

[0016] Figure 2 For Figure 1 The structure diagram of the closing mechanism is shown.

[0017] The figure mark: 1, bottom plate, 2, calcination furnace, 3, preheating box, 4, preheating pipe, 5, spiral pipe, 6, guide pipe, 7, closing mechanism, 71, support frame, 72, support block, 73, rotating motor, 74, threaded rod, 75, threaded block, 76, cover plate, 8, stirring motor, 9, stirring shaft, 10, stirring blade, 11, heating pipe, 12, discharge pipe, 13, valve, 14, conveying frame, 15, conveying motor, 16, screw rod, 17, opening, 18, guide block. DETAILED DESCRIPTION

[0018] The utility model will be further described below in combination with the drawings and embodiments.

[0019] Please refer to Figure 1 And Figure 2 Among them, Figure 1 A preferred embodiment structure diagram of the building gypsum powder calcination feeder provided by the utility model is shown in the figure. Figure 2 For Figure 1 The structure diagram of the closing mechanism is shown. The building gypsum powder calcination feeder comprises a bottom plate 1, a calcination furnace 2 is fixedly connected to the top of the bottom plate 1 through a support column, a preheating box 3 is fixedly connected to the top left side of the calcination furnace 2, preheating pipes 4 are arranged on the inner walls of the preheating box 3 on both sides, a spiral pipe 5 is arranged in the preheating box 3, one end of the spiral pipe 5 penetrates through the preheating box 3 and extends to the outside of the preheating box 3, a guide pipe 6 is connected to the other end of the spiral pipe 5, one end of the guide pipe 6 penetrates through the preheating box 3 and the calcination furnace 2 and extends to the inside of the calcination furnace 2, and a closing mechanism 7 is arranged on the top of the calcination furnace 2.

[0020] The closing mechanism 7 comprises a support frame 71, a support block 72 is fixedly connected to one side of the bottom of the support frame 71, a rotating motor 73 is fixedly connected to one side of the support frame 71, a threaded rod 74 is fixedly connected to the output shaft of the rotating motor 73, a threaded block 75 is threadedly connected to the surface of the threaded rod 74, the top of the threaded block 75 is slidably connected to the bottom of the support frame 71, a cover plate 76 is fixedly connected to the bottom of the threaded block 75, and one side of the cover plate 76 penetrates through the preheating box 3 and extends to the inside of the preheating box 3.

[0021] The rotating motor 73 is a three-phase asynchronous motor, which can drive the threaded rod to rotate forward and backward, thereby controlling the moving direction of the threaded block 75.

[0022] The threaded block 75 is internally provided with threads matched with the threaded rod 74.

[0023] The support frame 71 is provided with sliding rails matched with the sliding of the threaded block 75.

[0024] One side of the calcining furnace 2 is fixedly connected with a stirring motor 8 through a support block, an output shaft of the stirring motor 8 is fixedly connected with a stirring shaft 9, one end of the stirring shaft 9 penetrates through the calcining furnace 2 and extends into the interior of the calcining furnace 2, one end of the stirring shaft 9 is rotationally connected with one side of the inner wall of the calcining furnace 2, and the surface of the stirring shaft 9 is provided with stirring blades 10, and both sides of the inner wall of the calcining furnace 2 are provided with heating pipes 11.

[0025] The heating pipes 11 heat to increase the temperature in the interior of the calcining furnace 2, thereby calcining the gypsum.

[0026] The top right side of the bottom plate 1 is fixedly connected with a conveying frame 14, one side of the conveying frame 14 is fixedly connected with a conveying motor 15, an output shaft of the conveying motor 15 is fixedly connected with a spiral rod 16, one end of the spiral rod 16 penetrates through the conveying frame 14 and extends into the interior of the conveying frame 14.

[0027] The right side of the conveying frame 14 is provided with a conveying opening.

[0028] The right side of the bottom of the calcining furnace 2 and the left side of the top of the conveying frame 14 are communicated with a discharge pipe 12, and a valve 13 is arranged on the discharge pipe.

[0029] The calcining furnace 2 and the preheating box 3 are both provided with an opening 17, and the bottom of the inner wall of the calcining furnace 2 is fixedly provided with a material guiding block 18.

[0030] The material can be guided into the calcining furnace 2 from the preheating box 3 through the opening 17.

[0031] The top of the material guiding block 18 is obliquely arranged and used for guiding the material to be discharged from the calcining furnace 2.

[0032] The working principle of the preparation building gypsum powder calcining and material conveying device is as follows:

[0033] In the use process, the gypsum in the calcining furnace 2 is calcined, and the high-temperature gas generated is discharged into the spiral pipe 5 through the pipe 6, the spiral pipe 5 and the preheating pipe 4 are used for preheating the gypsum stored in the preheating box 3, the high-temperature gas generated during the calcination of the gypsum is used for heat recovery, the gypsum to be calcined is preheated, the heat loss is reduced, and the energy saving and emission reduction are facilitated.

[0034] After preheating for a period of time, the motor 73 is rotated to drive the threaded rod 74 to rotate, the threaded rod 74 drives the threaded block 75 to move to the right, the threaded block 75 drives the cover plate 76 to move to the right, so that the gypsum in the preheating box 3 enters the calcining furnace 2 through the opening 17;

[0035] The stirring motor 8 is operated to drive the stirring shaft 9 and the stirring blade 10 to rotate, the gypsum is stirred, the calcining efficiency is improved, after the calcining is completed, the valve 13 is opened, the calcined gypsum is discharged into the conveying frame 14, through the action of the conveying motor 15 and the screw rod 16, the gypsum can be sent to the designated position.

[0036] Compared with the related art, the preparation building gypsum powder calcining and material conveying device has the following beneficial effects:

[0037] The high-temperature gas generated by calcining the gypsum in the calcining furnace 2 is discharged into the spiral pipe 5 through the pipe 6, the spiral pipe 5 and the preheating pipe 4 are used for preheating the gypsum stored in the preheating box 3, the heat generated by calcining the gypsum is recovered, the gypsum to be calcined is preheated, the heat loss is reduced, and energy saving and emission reduction are facilitated.

[0038] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion or direct or indirect application in other related technical fields by using the content of the utility model specification and drawings is also included in the patent protection range of the utility model.

Claims

1. A building gypsum powder calciner conveyor comprising: The bottom plate (1) is characterized in that the top of the bottom plate (1) is fixedly connected with a calcination furnace (2) through a supporting column, the left side of the top of the calcination furnace (2) is fixedly connected with a preheating box (3), both sides of the inner wall of the preheating box (3) are provided with preheating pipes (4), the inside of the preheating box (3) is provided with a spiral pipe (5), one end of the spiral pipe (5) penetrates through the preheating box (3) and extends to the outside of the preheating box (3), the other end of the spiral pipe (5) is communicated with a conduit (6), one end of the conduit (6) penetrates through the preheating box (3) and the calcination furnace (2) and extends to the inside of the calcination furnace (2), and the top of the calcination furnace (2) is provided with a closing mechanism (7).

2. A building gypsum powder calciner feeder according to claim 1, characterized in that, The closing mechanism (7) comprises a supporting frame (71), one side of the bottom of the supporting frame (71) is fixedly connected with a supporting block (72), one side of the supporting frame (71) is fixedly connected with a rotating motor (73), the output shaft of the rotating motor (73) is fixedly connected with a threaded rod (74), the surface of the threaded rod (74) is threadedly connected with a threaded block (75), the top of the threaded block (75) is slidably connected with the bottom of the supporting frame (71), and the bottom of the threaded block (75) is fixedly connected with a cover plate (76), one side of the cover plate (76) penetrates through the preheating box (3) and extends to the inside of the preheating box (3).

3. A building gypsum powder calciner feeder according to claim 2, characterized in that, One side of the calcination furnace (2) is fixedly connected with a stirring motor (8) through a supporting block, the output shaft of the stirring motor (8) is fixedly connected with a stirring shaft (9), one end of the stirring shaft (9) penetrates through the calcination furnace (2) and extends to the inside of the calcination furnace (2), one end of the stirring shaft (9) is rotatably connected with one side of the inner wall of the calcination furnace (2), and the surface of the stirring shaft (9) is provided with stirring blades (10). The inner wall of the calcination furnace (2) is provided with heating pipes (11) on both sides.

4. The building gypsum powder calcining feeder of claim 3, wherein, The top of the bottom plate (1) is fixedly connected with a conveying frame (14) on the right side, one side of the conveying frame (14) is fixedly connected with a conveying motor (15), the output shaft of the conveying motor (15) is fixedly connected with a spiral rod (16), and one end of the spiral rod (16) penetrates through the conveying frame (14) and extends to the inside of the conveying frame (14).

5. The building gypsum powder calcining feeder of claim 4, wherein, The bottom right side of the calcination furnace (2) and the top left side of the conveying frame (14) are communicated with a discharge pipe (12), and a valve (13) is arranged on the discharge pipe.

6. The production of architectural gypsum powder calcination feeder according to claim 5, characterized in that, Openings (17) are formed in the calcination furnace (2) and the preheating box (3), and guide blocks (18) are fixedly arranged on the bottom of the inner wall of the calcination furnace (2).

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