Anti-caking calcium carbonate powder drying device

Abstract

The utility model provides an anti-caking calcium carbonate powder drying device which comprises a drying cylinder, the drying cylinder is of a conical cylinder structure with the small end facing downwards, a lifting sealing base is arranged on the top of the drying cylinder, a vertical rotating shaft is arranged on the lifting sealing base, the bottom of the vertical rotating shaft is rotationally connected with a sealing disc close to the top of the drying cylinder, and the sealing disc is arranged on the drying cylinder. The vertical rotating shaft is fixedly sleeved with a spiral blade. According to the drying device, the drying cylinder is arranged to be of the cone structure with the small end facing downwards, then the sealing disc close to the bottom is arranged on the drying cylinder, the sealing disc has the lifting function, when the sealing disc descends to the limiting position, part of the space on the lower portion of the drying cylinder can be blocked, and at the moment, the space above the sealing disc is the drying treatment space; and the space below the sealing disc is the discharging space, so that drying and discharging have the independent control function, the caking problem is avoided, and discharging control is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to calcium carbonate powder processing preparation technical field, specifically for a kind of anti-caking calcium carbonate powder drying device. BACKGROUND

[0002] In prior art, the drying of calcium carbonate is carried out in a drying tower, and the moisture in the calcium carbonate powder is evaporated by circulating hot air. Since the space inside the tower is small, the calcium carbonate runs in the tower for a short time, resulting in incomplete drying. To solve this problem, the tower is often built larger, wasting land area, and the larger the space, the more heat required, resulting in higher production cost. Moreover, the humid calcium carbonate powder is prone to clumping, reducing drying efficiency.

[0003] The utility model with publication number CN213335421U proposes a calcium carbonate powder drying device that prevents clumping, which includes a drying tank body. A hot air inlet is provided on the side wall of the drying tank body, a discharge port is provided at the bottom, and a hot air outlet is provided at the top. A material lifting groove is provided inside the drying tank body, and a material lifting mechanism is provided inside the material lifting groove. The material lifting mechanism includes a rotating shaft, a first spiral blade and a second spiral blade. The first spiral blade is arranged below the second spiral blade. The first spiral blade is a solid blade. The second spiral blade is provided with a plurality of material leakage holes. The discharge port is arranged on the side of the material lifting groove away from the hot air inlet. The utility model has the following beneficial effects: the solid first spiral blade lifts the calcium carbonate powder in the material lifting groove, the lifted powder hits the second spiral blade, and the clumped powder is broken into powder through the material leakage holes. The hot air at the hot air inlet is used to dry the powder.

[0004] However, the above prior art has the following deficiencies when in use: the drying and discharging of calcium carbonate powder are carried out simultaneously, specifically, the hot air is blown towards the uplifted calcium carbonate powder, and the part of the calcium carbonate powder with high humidity will directly drop into the material lifting groove, and the part of the calcium carbonate powder that is dry will be directly blown into the drying bin on one side of the material lifting groove by the hot air. However, this air separation method has the defect of poor precision, that is, the calcium carbonate powder with high humidity is easily mixed into the drying bin, and the calcium carbonate powder with high humidity in the drying bin is prone to secondary clumping, so there is the defect of poor anti-clumping treatment effect.

[0005] Therefore, the utility model provides a calcium carbonate powder drying device that prevents clumping. UTILITY MODEL CONTENTS

[0006] In view of the problems existing in the prior art, the utility model aims at providing a calcium carbonate powder drying device with anti-caking function to solve the problems in the prior art, which has the advantages of drying and crushing the caked powder more completely, and drying and discharging are separately controlled, so that the problem of secondary caking is avoided.

[0007] In order to achieve the above object, the utility model is realized through the following technical scheme: a calcium carbonate powder drying device with anti-caking function, which comprises a drying cylinder, wherein the drying cylinder is a conical cylinder structure with a small end downward, a lifting seal seat is arranged at the top of the drying cylinder, a vertical rotating shaft is arranged above the lifting seal seat, a seal disc is rotatably connected to the bottom of the vertical rotating shaft and close to the top of the drying cylinder, a spiral blade is fixedly sleeved on the outside of the vertical rotating shaft, a spiral surrounding fence is arranged on the outer edge of the spiral blade, and a discharging pipe is arranged at the bottom of the drying cylinder.

[0008] Further, a transmission shaft is arranged on one side of the vertical rotating shaft on the lifting seal seat, and a crushing blade is fixedly connected to the bottom of the transmission shaft and located inside the top of the spiral surrounding fence.

[0009] Further, a humidity sensor is arranged at the top of the drying cylinder and close to the side.

[0010] Further, a sealing rubber ring is fixedly sleeved on the outer periphery of the seal disc, a guide sleeve is fixedly connected to the middle of the top of the drying cylinder and sleeved on the outside of the lifting seal seat, the cross section of the lifting seal seat is H-shaped, and a sealing rubber sleeve is nested in the guide sleeve and sealingly matched with the outer peripheral wall of the lifting seal seat.

[0011] Further, a plurality of shunt holes are uniformly arranged through the side wall of the spiral surrounding fence.

[0012] Further, a transmission screw is arranged at the top of the drying cylinder, and a transmission sleeve is fixedly connected to the top of the lifting seal seat and screw-coupled with the transmission screw.

[0013] Further, a control motor is fixedly connected to the top of the output shaft and the transmission shaft of the lifting seal seat.

[0014] The utility model has the advantages as follows:

[0015] In the utility model, the drying cylinder is arranged as a conical body structure with a small end downward, and then the seal disc close to the bottom is arranged on the drying cylinder, the seal disc has the function of lifting, when the seal disc is lowered to the limit position, it will block part of the space at the lower part of the drying cylinder, at this time, the space above the seal disc is the drying treatment space, and the space below the seal disc is the discharging space, this arrangement makes the drying and discharging have the function of separate control, so that the problem of secondary caking is avoided, and the discharging control is more convenient.

[0016] In the utility model, the spiral blade is arranged above the sealing disc, the outer edge of the spiral blade is provided with a spiral fence, the arrangement makes the up-down stirring of the calcium carbonate powder in the space above the sealing disc more efficient and thorough, the calcium carbonate powder can be heated uniformly, and the efficiency of the drying treatment is greatly improved.

[0017] In the utility model, the crushing blade is arranged in the inside of the top of the spiral fence, and the crushing blade can scatter the lumps in the calcium carbonate powder about to be separated from the top of the spiral fence when the crushing blade rotates, and the crushing blade has the advantages of more efficient elimination of lumps. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structure schematic view of the anti-lump calcium carbonate powder drying device of the utility model;

[0019] Figure 2 It is Figure 1 It is a schematic view of the bottom;

[0020] Figure 3 It is Figure 1 It is a schematic view of the enlarged middle part "a".

[0021] In the drawing: 1, drying cylinder; 11, guide sleeve; 111, sealing rubber sleeve; 2, lifting sealing seat; 21, transmission silk sleeve; 3, vertical rotating shaft; 4, sealing disc; 41, sealing rubber ring; 5, spiral blade; 6, spiral fence; 61, shunt hole; 7, discharge pipe; 8, crushing blade; 9, humidity sensor; 101, transmission screw; 102, control motor; 103, transmission shaft. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the utility model is further described below in combination with specific implementation manners.

[0023] Please refer to Figures 1 to 3 The utility model provides a technical scheme: an anti-lump calcium carbonate powder drying device, which comprises a drying cylinder 1, the drying cylinder 1 is a conical cylinder structure with a small end downward, the top of the drying cylinder 1 is provided with a lifting sealing seat 2, the lifting sealing seat 2 is provided with a vertical rotating shaft 3 upwards, the bottom of the vertical rotating shaft 3 is rotationally connected with a sealing disc 4 close to the top of the drying cylinder 1, the lifting sealing seat 2 moves upwards and downwards and can drive the sealing disc 4 to move upwards and downwards through the vertical rotating shaft 3, when the sealing disc 4 moves downwards to the position where the outer periphery of the sealing disc 4 abuts against the conical wall of the drying cylinder 1, the space above the sealing disc 4 is the space for drying, stirring and processing lumps, and the space below the sealing disc 4 is the space for discharging and circulating, the bottom of the drying cylinder 1 is provided with a discharge pipe 7, when the powder after drying is stored in the discharging and circulating space, the powder is discharged to the outside through the discharge pipe 7. The top of the lifting sealing seat 2 is fixedly installed with a stirring motor, and the output shaft of the stirring motor is fixedly connected with the vertical rotating shaft 3.

[0024] Further, the outer fixed sleeve of the vertical rotating shaft 3 is provided with a spiral blade 5, which can rotate with the vertical rotating shaft 3. At this time, the spiral blade 5 will convey the accumulated powder at the bottom upward to the top, and then branch from the top to the surrounding. Since the spiral blade 5 is a sheet structure, there is a problem of poor powder up-and-down stirring effect. At this time, a spiral fence 6 can be provided on the outer edge of the spiral blade 5. The setting of the spiral fence 6 enables the spiral blade 5 to reliably lift the powder, so that the powder up-and-down stirring is more efficient and complete. The side wall of the spiral fence 6 is provided with evenly distributed shunt holes 61. The setting of the shunt hole 61 enables the shunt hole 61 on the spiral fence 6 to timely shunt part of the powder in the spiral fence 6, so that the upturned powder can be evenly dispersed.

[0025] In addition, the lifting seal seat 2 is provided with a transmission shaft 103 on one side of the vertical rotating shaft 3. The bottom of the transmission shaft 103 is fixedly connected with a crushing blade 8, which is located inside the top of the spiral fence 6. The transmission shaft 103 can rotate to drive the crushing blade 8 to rotate. The crushing blade 8 can scatter the powder about to be separated from the top of the spiral fence 6, eliminating the caking

[0026] When the powder in the space above the sealing disc 4 is dried, the lifting seal seat 2 is lifted, the sealing disc 4 is opened, and the powder falls and is discharged through the discharge pipe 7. A humidity sensor 9 can be provided near the side of the top of the drying cylinder 1. In use, the humidity sensor 9 is electrically connected to an external display, so that the humidity of the powder can be obtained.

[0027] In this embodiment, the outer periphery of the sealing disc 4 is provided with a sealing rubber ring 41. The sealing rubber ring 41 can improve the sealing degree of the sealing disc 4 and the drying cylinder 1 after pressing, preventing material leakage. The middle of the top of the drying cylinder 1 is fixedly connected with a guide sleeve 11 which is sleeved outside the lifting seal seat 2. The cross section of the lifting seal seat 2 is H-shaped structure. The guide sleeve 11 is nested with a sealing rubber sleeve 111 which is in sealing cooperation with the outer peripheral wall of the lifting seal seat 2. The sealing rubber sleeve 111 enables the lifting seal seat 2 and the drying cylinder 1 to be in upper and lower sliding sealing cooperation.

[0028] In this embodiment, the top of the drying cylinder 1 is provided with a transmission screw 101. In specific implementation, a door-shaped frame can be welded on the top of the drying cylinder 1. The transmission screw 101 is rotatably arranged in the door-shaped frame. The top of the lifting seal seat 2 is fixedly connected with a transmission screw sleeve 21 which is in screw connection with the transmission screw 101. Then a driving motor is installed on the top of the door-shaped frame. The output shaft of the driving motor is fixedly connected with one end of the transmission screw 101. The top of the lifting seal seat 2 is fixedly connected with a control motor 102 whose output shaft is fixedly connected with the top of the transmission shaft 103. The control motor 102 provides driving force for the rotation of the transmission shaft 103.

[0029] In this embodiment, the top of the drying cylinder 1 is provided with a feed pipe and a hot air inlet pipe close to the side, the function of the feed pipe is to guide the powder into the drying cylinder 1, the function of the hot air inlet pipe is to guide the hot air into the drying cylinder 1, then a hot air outlet cover is provided on the top of the drying cylinder 1 close to the side, the top of the hot air outlet cover is provided with a hot air exhaust pipe, a primary filter screen is installed in the hot air outlet cover and a heating element is installed above the primary filter screen, a secondary filter screen is installed in the hot air exhaust pipe, the drying principle of the drying cylinder 1 is the same as the drying principle in the patent documents mentioned in the background art, and the present application will not be described again.

[0030] Working principle: during drying, control the vertical rotating shaft 3 to rotate, the spiral blade 5 and the spiral surrounding barrier 6 rotate synchronously, and the powder at the bottom of the bottom sealing disc 4 is collected and passively guided upward, when the powder in the spiral surrounding barrier 6 is higher than the height of the material in the drying cylinder 1, part of the powder in the spiral surrounding barrier 6 will fall through the shunt hole 61, the rest will continue to move upward, at this time, the transmission shaft 103 is started, the crushing blade 8 rotates to crush the powder at the top of the spiral surrounding barrier 6, thereby eliminating the lumps in the upward material, when the powder drying is completed, control the lifting sealing seat 2 to rise, the sealing disc 4 is separated from the drying cylinder 1, at this time, the dried powder will fall along the gap between the sealing disc 4 and the drying cylinder 1 and be discharged through the discharge pipe 7.

[0031] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. An anti-caking calcium carbonate powder drying apparatus comprising a drying cylinder (1), characterized in that, The dry cylinder (1) is a small-end-down conical cylinder structure, the top of the dry cylinder (1) is provided with a lifting seal seat (2), the upper part of the lifting seal seat (2) is provided with a vertical rotating shaft (3), the bottom of the vertical rotating shaft (3) is rotatably connected with a seal disc (4) close to the top of the dry cylinder (1), the outer part of the vertical rotating shaft (3) is fixedly sleeved with a spiral blade (5), the outer edge of the spiral blade (5) is provided with a spiral fence (6), and the bottom of the dry cylinder (1) is provided with a discharge pipe (7).

2. The anti-caking calcium carbonate powder drying device according to claim 1, characterized in that: The lifting seal seat (2) is provided with a transmission shaft (103) on one side of the vertical rotating shaft (3), and the bottom of the transmission shaft (103) is fixedly connected with a crushing blade (8) located inside the top of the spiral fence (6).

3. The anti-caking calcium carbonate powder drying device according to claim 1, characterized in that: The top of the dry cylinder (1) is provided with a humidity sensor (9) close to the side.

4. The anti-caking calcium carbonate powder drying device according to claim 1, characterized in that: The outer periphery of the seal disc (4) is fixedly sleeved with a sealing rubber ring (41), the middle part of the top of the dry cylinder (1) is fixedly connected with a guide sleeve (11) sleeved outside the lifting seal seat (2), the cross section of the lifting seal seat (2) is H-shaped structure, and the guide sleeve (11) is embedded with a sealing rubber sleeve (111) in sealing cooperation with the outer peripheral wall of the lifting seal seat (2).

5. The anti-caking calcium carbonate powder drying device according to claim 1, characterized in that: The side wall of the spiral fence (6) is provided with uniformly distributed shunt holes (61).

6. The anti-caking calcium carbonate powder drying device according to claim 1, characterized in that: The top of the dry cylinder (1) is provided with a transmission screw (101), and the top of the lifting seal seat (2) is fixedly connected with a transmission sleeve (21) in screw connection with the transmission screw (101).

7. The anti-caking calcium carbonate powder drying device according to claim 1, characterized in that: The top of the lifting seal seat (2) is fixedly connected with a control motor (102) fixedly connected with the top of the output shaft and the transmission shaft (103).

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