Hot air circulation type pregelatinized starch drying equipment

Abstract

The utility model relates to the technical field of pregelatinized starch preparation, and discloses hot air circulation type pregelatinized starch drying equipment which comprises a drying box and a heating box, the heating box is fixedly connected to one side wall of the drying box, the bottom of an inner cavity of the drying box is rotationally connected with a rotating cylinder, a breathable net is embedded in the outer side wall of the rotating cylinder, and the inner cavity of the drying box is fixedly connected with the heating box. The drying box is provided with a driving piece used for driving the rotating cylinder to rotate, the rotating cylinder is provided with a connecting piece facilitating rotation of the rotating cylinder, the two sides of the top of an inner cavity of the drying box are fixedly connected with scraping plates, and the scraping plates are located in the inner cavity of the rotating cylinder and attached to the inner wall of the rotating cylinder; according to the scheme, hot air can be conveniently recycled, waste of resources is reduced, the working efficiency of the drying equipment is guaranteed, the situation that the breathable net is blocked by starch is reduced, the heating time of pregelatinized starch is shortened, and the drying efficiency of the pregelatinized starch is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pregelatinized starch preparation, in particular to hot air circulation type pregelatinized starch drying equipment. Background Art

[0002] Pregelatinized starch is made by partially or completely breaking starch granules by chemical or mechanical methods, making the starch fluid and directly compressible. Pregelatinized starch is a modified starch, a white or off-white powder with a moderately coarse to fine texture. It is odorless and has a slightly special taste. It is often used as a binder, diluent and disintegrant for oral tablets and capsules. Pregelatinized starch is usually made by heating an aqueous starch slurry. During the preparation process of pregelatinized starch, the pregelatinized starch needs to be dried to remove the moisture in the pregelatinized starch so that it can be used for subsequent compression and other operations.

[0003] The utility model patent with patent application publication number 202120734558.8 discloses a drying equipment for starch, including a drying tank body, a cover plate is provided on the top of the drying tank body, the inner wall of the drying tank body is fixedly connected to a heating layer, the interior of the heating layer is electrically connected to a heating wire, the top of the cover plate is fixedly connected to a transmission box, the top of the transmission box is fixedly connected to a motor through a fixed block, the output end of the motor passes through the interior of the transmission box and is fixedly connected to a transmission gear, and both sides of the top of the inner wall of the transmission box are movably connected to a transmission rod through a bearing, and a drying tank body, a cover plate, a heating layer, a heating wire, a transmission box, a motor, a transmission gear, a transmission rod, a driven gear, an exhaust port, a feed pipe, a discharge pipe, blades and a stirring rod are arranged for use in combination, which solves the problem that the starch after drying is in a clumping state, and the user needs to crush it when packaging it, which increases the labor intensity of the workers and is inconvenient for users to use.

[0004] According to the above patent, there is a starch drying equipment, but it still has disadvantages in actual use. The most obvious one is that the hot air in the drying box is usually discharged directly, which is not convenient for the circulation of hot air, resulting in waste of resources and affecting the working efficiency of the drying equipment. In addition, the air permeable net in the drying box is easily blocked by starch, which prolongs the heating time of pregelatinized starch and reduces the drying efficiency of pregelatinized starch. For this reason, we propose a hot air circulation pregelatinized starch drying equipment. Utility Model Content

[0005] The purpose of the present invention is to provide a hot air circulation type pregelatinized starch drying device to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose of the invention, the present invention provides the following technical solutions:

[0007] The present application is specifically as follows: a hot air circulation type pregelatinized starch drying equipment, comprising a drying box and a heating box, the heating box being fixedly connected to a side wall of the drying box, a rotating drum being rotatably connected to the bottom of the inner cavity of the drying box, an outer side wall of the rotating drum being inlaid with an air-permeable mesh, a driving member for driving the rotating drum to rotate being provided on the drying box, a connecting member for facilitating the rotation of the rotating drum being provided on the rotating drum, scrapers being fixedly connected to both sides of the top of the inner cavity of the drying box, the scrapers being located in the inner cavity of the rotating drum and being in contact with the inner wall of the rotating drum, and a feeding pipe for feeding material being provided on the top of the drying box;

[0008] The inner cavity of the heating box is provided with a heating element for heating air, and a fan is provided at the bottom of the heating box. The air outlet end of the fan is connected with a first connecting pipe, and one end of the first connecting pipe is connected to the lower side of the side wall of the drying box. The top of the heating box is connected with a second connecting pipe, and the second connecting pipe is connected to the upper side of the side wall of the drying box.

[0009] As a preferred technical solution of the present application, the driving member includes a gear ring and a gear. The gear ring is fixedly connected to the lower side of the outer wall of the rotating cylinder, and the gear is rotatably arranged on the bottom side of the inner cavity of the drying box. The gear is meshed with the gear ring, and the drying box is provided with a power member that drives the gear to rotate.

[0010] The power component includes a motor, which is fixedly connected to one side of the bottom of the inner cavity of the drying box. The power output end of the motor passes through the bottom of the inner cavity of the drying box and is fixedly connected to the gear.

[0011] The connecting member includes a rotating ring, which is fixedly connected to the upper side of the outer wall of the rotating cylinder. The top of the inner cavity of the drying box is provided with an annular groove matching the rotating ring.

[0012] A threaded groove is provided on the inner side wall of the feed pipe and is threadedly connected to a sealing column, and a knob is fixedly connected to the top of the sealing column.

[0013] A feeding hole matching the discharge port of the feeding pipe is provided at the middle of the inner cavity top of the drying box.

[0014] An exhaust valve for exhausting air is plugged into the upper side of one side wall of the drying box.

[0015] A discharge valve for discharging materials is provided at the middle of the bottom of the rotating drum, and one end of the discharge valve passes through the bottom of the inner cavity of the drying box and extends to the lower side thereof.

[0016] The heating element includes a support frame and a heating wire. The support frame is fixedly connected to the inner cavity of the heating box, and the heating wire is fixedly arranged in the inner cavity of the support frame.

[0017] An exhaust port is provided at the bottom of the heating box, and the air inlet of the fan matches the exhaust port of the heating box.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] In the scheme of this application:

[0020] 1. By setting a heating component to heat the air, and using a fan to blow the hot air into the drying box through the first connecting pipe, the starch in the rotating drum is heated and dried. At the same time, the fan draws the hot air in the drying box back into the heating box through the second connecting pipe. Only slight heating is needed to achieve the temperature increase of the hot air, thereby facilitating the recycling of hot air, reducing the waste of resources, and ensuring the working efficiency of the drying equipment.

[0021] 2. The air mesh can be cleaned by setting a scraper. The motor drives the gear to rotate, and the gear drives the gear ring and the rotating drum to rotate. The rotating drum drives the starch to rotate. At this time, the air mesh rotates on the surface of the scraper, so that the scraper can clean the air mesh. The sealing performance of the drying box is improved by setting a sealing column, thereby reducing the occurrence of the air mesh being blocked by starch, reducing the heating time of the pregelatinized starch, and improving the drying efficiency of the pregelatinized starch. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0023] In the attached figure:

[0024] Figure 1 A three-dimensional diagram of a hot air circulation type pregelatinized starch drying equipment provided in this application;

[0025] Figure 2 This is a diagram of the interior of a drying box of a hot air circulation type pregelatinized starch drying equipment provided in this application;

[0026] Figure 3 This is a structural diagram of a rotating drum of a hot air circulation type pregelatinized starch drying equipment provided in this application;

[0027] Figure 4 This is a structural diagram of the feed pipe of a hot air circulation type pregelatinized starch drying equipment provided in this application.

[0028] In the figure: 100, drying box; 110, rotating drum; 111, breathable net; 112, gear ring; 120, rotating ring; 121, annular groove; 122, feed hole; 130, scraper; 140, motor; 141, gear; 150, feed pipe; 151, sealing column; 152, knob; 160, exhaust valve; 161, discharge valve; 200, heating box; 210, support frame; 211, heating wire; 220, fan; 221, first connecting pipe; 230, second connecting pipe. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-4 , a hot air circulation type pregelatinized starch drying equipment, including a drying box 100 and a heating box 200, the heating box 200 is fixedly connected to one side wall of the drying box 100, the bottom of the inner cavity of the drying box 100 is rotatably connected to the rotating drum 110, and the starch is stored through the rotating drum 110, and the outer wall of the rotating drum 110 is inlaid with an air-permeable net 111, the air-permeable net 111 facilitates the entry of hot air into the rotating drum 110, and can block the starch to prevent the starch from moving out of the rotating drum 110, the drying box 100 is provided with a driving member for driving the rotating drum 110 to rotate, and the rotating drum 110 is provided with a connecting member for facilitating the rotation of the rotating drum 110, and scrapers 130 are fixedly connected to both sides of the top of the inner cavity of the drying box 100, and the scrapers 130 are used to clean the air-permeable net 111 The scraper 130 is located in the inner cavity of the rotating drum 110 and is fitted with the inner wall of the rotating drum 110. A feeding pipe 150 for feeding is provided on the top of the drying box 100; a heating element for heating air is provided in the inner cavity of the heating box 200, and a fan 220 is provided at the bottom of the heating box 200. The fan 220 is used to blow the hot air in the heating box 200 into the drying box 100 through the first connecting pipe 221. The air outlet end of the fan 220 is connected with the first connecting pipe 221, and one end of the first connecting pipe 221 is connected to the lower side of the side wall of the drying box 100. A second connecting pipe 230 is connected to the top of the heating box 200, and the hot air circulates back to the heating box 200 through the second connecting pipe 230. The second connecting pipe 230 is connected to the upper side of the side wall of the drying box 100.

[0031] See also Figure 2 and Figure 3The driving member includes a gear ring 112 and a gear 141. The gear ring 112 is fixedly connected to the lower side of the outer wall of the rotating drum 110. The gear 141 is rotatably arranged on the bottom side of the inner cavity of the drying box 100. The gear 141 is meshed with the gear ring 112. The drying box 100 is provided with a power member that drives the gear 141 to rotate. The gear 141 is driven to rotate by the power member, and the gear 141 drives the gear ring 112 and the rotating drum 110 to rotate.

[0032] See also Figure 2 and Figure 3 The power part includes a motor 140, which is fixedly connected to one side of the bottom of the inner cavity of the drying box 100. The power output end of the motor 140 passes through the bottom of the inner cavity of the drying box 100 and is fixedly connected to the gear 141. The gear 141 is driven to rotate by the motor 140.

[0033] See also Figure 3 and Figure 4 The connecting piece includes a rotating ring 120, which is fixedly connected to the upper side of the outer wall of the rotating drum 110. The top of the inner cavity of the drying box 100 is provided with an annular groove 121 that matches the rotating ring 120, and the rotating ring 120 rotates in the annular groove 121.

[0034] See also Figure 4 The inner wall of the feed pipe 150 is provided with a threaded groove, and a sealing column 151 is threadedly connected to the top of the sealing column 151. A knob 152 is fixedly connected to the top of the sealing column 151. The feed pipe 150 is closed by the sealing column 151, and the sealing column 151 is rotated by the knob 152.

[0035] See also Figure 3 and Figure 4 A feed hole 122 matching the discharge port of the feed pipe 150 is provided at the middle of the top of the inner cavity of the drying box 100 , and the starch enters the rotating drum 110 through the feed pipe 150 and the feed hole 122 .

[0036] See also Figure 1 An exhaust valve 160 for exhausting air is plugged into the upper side of one side wall of the drying box 100.

[0037] See also Figure 1 and Figure 2 A discharge valve 161 for discharging materials is provided at the middle of the bottom of the rotating drum 110. One end of the discharge valve 161 passes through the bottom of the inner cavity of the drying box 100 and extends to the lower side thereof.

[0038] See also Figure 2 The heating element includes a support frame 210 and a heating wire 211. The support frame 210 is fixedly connected to the inner cavity of the heating box 200. The heating wire 211 is fixedly set in the inner cavity of the support frame 210, and the air is heated by the heating wire 211.

[0039] See also Figure 2 An exhaust port is provided at the bottom of the heating box 200 , and the air inlet of the fan 220 matches the exhaust port of the heating box 200 , so that the air in the heating box 200 is extracted through the fan 220 .

[0040] Specifically, when the device is in use, the pregelatinized starch drying equipment is first connected to the power supply, and then the raw materials are added to the rotating drum 110 through the feed pipe 150, and the feed pipe 150 is sealed by the sealing column 151, and then the heating wire 211 is energized to heat the air in the heating box 200. At this time, the hot air is extracted from the heating box 200 by the fan 220 and transported to the drying box 100 through the first connecting pipe 221. Then, the motor 140 drives the gear 141 to rotate, and the gear 141 drives the rotating ring 120 and the rotating drum 110 to rotate, and the raw materials are driven to be heated and dried through the rotating drum 110. At this time, the air permeable net 111 is cleaned by the scraper 130, and then the hot air returns to the heating box 200 through the second connecting pipe 230 for reheating. After the drying of the raw materials is completed, they are discharged through the discharge valve 161, and the use of the equipment is completed.

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot air circulation type pregelatinized starch drying device, comprising a drying box (100) and a heating box (200), characterized in that: The heating box (200) is fixedly connected to a side wall of the drying box (100); the bottom of the inner cavity of the drying box (100) is rotatably connected to a rotating drum (110); the outer wall of the rotating drum (110) is inlaid with a breathable net (111); the drying box (100) is provided with a driving member for driving the rotating drum (110) to rotate; the rotating drum (110) is provided with a connecting member for facilitating the rotation of the rotating drum (110); scrapers (130) are fixedly connected to both sides of the top of the inner cavity of the drying box (100); the scrapers (130) are located in the inner cavity of the rotating drum (110) and fit with the inner wall of the rotating drum (110); a feeding pipe (150) for feeding is provided on the top of the drying box (100); The inner cavity of the heating box (200) is provided with a heating element for heating air, the bottom of the heating box (200) is provided with a fan (220), the air outlet end of the fan (220) is plugged with a first connecting pipe (221), one end of the first connecting pipe (221) is plugged into the lower side of the side wall of the drying box (100), the top of the heating box (200) is plugged with a second connecting pipe (230), and the second connecting pipe (230) is plugged into the upper side of the side wall of the drying box (100).

2. The hot air circulation type pregelatinized starch drying equipment according to claim 1, characterized in that: The driving member comprises a gear ring (112) and a gear (141); the gear ring (112) is fixedly connected to the lower side of the outer wall of the rotating drum (110); the gear (141) is rotatably arranged on one side of the bottom of the inner cavity of the drying box (100); the gear (141) is meshed with the gear ring (112); and a power member for driving the gear (141) to rotate is provided on the drying box (100).

3. The hot air circulation type pregelatinized starch drying equipment according to claim 2, characterized in that: The power component comprises a motor (140), the motor (140) being fixedly connected to one side of the bottom of the inner cavity of the drying box (100), and the power output end of the motor (140) passing through the bottom of the inner cavity of the drying box (100) and being fixedly connected to the gear (141).

4. The hot air circulation type pregelatinized starch drying equipment according to claim 1, characterized in that: The connecting member comprises a rotating ring (120), the rotating ring (120) being fixedly connected to the upper side of the outer wall of the rotating drum (110), and an annular groove (121) matching the rotating ring (120) is provided on the top of the inner cavity of the drying box (100).

5. The hot air circulation type pregelatinized starch drying equipment according to claim 1, characterized in that: The inner side wall of the feed pipe (150) is provided with a threaded groove and is threadedly connected to a sealing column (151), and the top of the sealing column (151) is fixedly connected to a knob (152).

6. The hot air circulation type pregelatinized starch drying equipment according to claim 1, characterized in that: A feed hole (122) matching the discharge port of the feed pipe (150) is provided at the middle of the inner cavity top of the drying box (100).

7. The hot air circulation type pregelatinized starch drying equipment according to claim 1, characterized in that: An exhaust valve (160) for exhausting air is plugged into the upper side of one side wall of the drying box (100).

8. The hot air circulation type pregelatinized starch drying equipment according to claim 1, characterized in that: A discharge valve (161) for discharging materials is provided at the middle of the bottom of the rotating drum (110), and one end of the discharge valve (161) passes through the bottom of the inner cavity of the drying box (100) and extends to the lower side thereof.

9. The hot air circulation type pregelatinized starch drying equipment according to claim 1, characterized in that: The heating element comprises a support frame (210) and a heating wire (211); the support frame (210) is fixedly connected to the inner cavity of the heating box (200); and the heating wire (211) is fixedly arranged in the inner cavity of the support frame (210).

10. The hot air circulation type pregelatinized starch drying equipment according to claim 1, characterized in that: An exhaust port is provided at the bottom of the heating box (200), and the air inlet of the fan (220) matches the exhaust port of the heating box (200).

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