Hot air circulation air bellow for food processing

Abstract

The utility model provides a hot air circulation air bellow for food processing, which relates to the technical field of food processing equipment and comprises an annular conveying belt, an annular hot air circulation cover body, a feeding window, a feeding and discharging channel, a lifting valve structure and a lifting type flow guide baffle structure, according to the device, a circular-ring-shaped hot air circulation cover body is fixed to the upper edge of a circular-ring-shaped conveying belt, the circular-ring-shaped conveying belt conducts feeding through a feeding and discharging channel, the feeding and discharging channel is blocked through a lifting valve structure after feeding, the circular-ring-shaped conveying belt drives materials to be conveyed clockwise, and hot air annularly flowing anticlockwise is formed in the circular-ring-shaped hot air circulation cover body; the anticlockwise hot air makes contact with the materials moving clockwise to dry the materials, no dead corner exists in the annular hot air circulation cover body, the hot air circulates in an annular mode in the annular hot air circulation cover body, and the drying uniformity degree is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing equipment, in particular to a hot air circulation bellows for food processing. Background Art

[0002] In the field of food processing technology, it is often necessary to dry the processed food. At this time, a hot air circulation oven is used. A hot air circulation oven is a device that forms hot air by heating the air and circulates the hot air internally for drying.

[0003] In the existing hot air circulation oven, the hot air circulates up and down inside, and the oven shell is mostly rectangular, which easily results in drying dead corners inside, resulting in uneven drying effect. Utility Model Content

[0004] The utility model aims to provide a hot air circulation bellows for food processing, which solves the technical problem of existing hot air circulation ovens, in which hot air circulates up and down inside, the oven shell is mostly rectangular, and there are easily drying dead corners inside, resulting in uneven drying effect.

[0005] The utility model provides a hot air circulation bellows for food processing, comprising:

[0006] A circular conveyor belt, the upper edge of which is fixedly equipped with a circular hot air circulation cover, and the circular conveyor belt rotates clockwise;

[0007] The outer wall of the annular hot air circulation cover is provided with a feed window, and a feed inlet and outlet channel is fixedly installed in the feed window;

[0008] The inlet and outlet passage is fixedly equipped with a lifting valve structure near one end of the annular hot air circulation cover;

[0009] The upper surface of the annular hot air circulation cover body is fixedly equipped with a lifting guide baffle structure near the inlet and outlet channels;

[0010] The movable part of the lifting guide baffle structure descends to guide the material to the inlet and outlet channels.

[0011] As a further optimization scheme, in order to form annular hot air flow in the spliced ​​annular cover, and form multi-angle wind drying through the air guide plate assembly to further improve the drying uniformity, the annular hot air circulation cover includes:

[0012] Spliced ​​annular cover;

[0013] The inner and outer annular surfaces of the inner wall of the spliced ​​annular cover are evenly and fixedly equipped with a circulation fan, and the wind force of the circulation fan is directed counterclockwise toward the spliced ​​annular cover;

[0014] The inner annular surface and the outer annular surface of the inner wall of the spliced ​​annular cover are evenly and fixedly equipped with electric heating pipes;

[0015] The top surface of the inner wall of the spliced ​​annular cover body is evenly and fixedly equipped with an air guide plate assembly, which is composed of six air shields, and the lower ends of the air shields are inclined toward the annular conveyor belt.

[0016] As a further optimization scheme, in order to facilitate the removal of the annular baffle when necessary, and to facilitate the inspection and maintenance of the internal components of the spliced ​​annular cover body, the spliced ​​annular cover body includes an annular shield, and the inner annular surface of the annular shield is designed to be open;

[0017] An annular baffle is detachably fixedly mounted on the inner annular surface opening of the annular shield by bolts.

[0018] As a further optimization solution, in order to generate circulating hot air in the spliced ​​annular cover, the circulating fan includes:

[0019] A fan mounting seat is fixedly mounted on the inner wall of the spliced ​​annular cover, and a fan mounting through hole is provided on the fan mounting seat;

[0020] A fan is fixedly mounted in the fan mounting through hole, and the wind force of the fan is directed counterclockwise toward the spliced ​​annular cover body.

[0021] As a further optimization scheme, in order to open when feeding is needed and close after feeding, so that the hot air inside the annular hot air circulation cover forms an annular circulation, the lifting valve structure includes

[0022] There are two vertical plates distributed in parallel, and the two vertical plates are respectively fixedly connected to both sides of the upper edge of one end of the inlet and outlet channel close to the annular hot air circulation cover;

[0023] A horizontal plate is fixedly mounted on the upper ends of the inner sides of the two vertical plates;

[0024] A first electric push rod is vertically fixedly mounted on the middle portion of the upper surface of the horizontal plate, and a telescopic end of the first electric push rod penetrates the horizontal plate;

[0025] The feed baffle is inserted into one end of the feed and discharge channel close to the annular hot air circulation cover, and the upper end of the feed baffle is fixedly connected to the telescopic lower end of the first electric push rod.

[0026] As a further optimization scheme, in order to block and guide the dried materials after the circular conveyor belt rotates multiple times and guides the dried materials to the inlet and outlet channels for discharge, the lifting guide baffle structure includes:

[0027] A strip window is provided on the upper surface of the annular hot air circulation cover body close to the inlet and outlet passage;

[0028] A guide baffle is slidably inserted in the strip-shaped window, and the guide baffle is lowered to block the inner wall of the annular hot air circulation cover;

[0029] The guide baffle is inclined toward the inlet and outlet channels;

[0030] A connecting plate is fixedly mounted on the upper end of the guide baffle, and a second electric push rod is fixedly mounted between the bottom surface of the connecting plate and the upper surface of the annular hot air circulation cover.

[0031] As a further optimization solution, in order to enhance the mechanical strength of the feed in and feed out channel, reinforcing ribs are fixedly connected between the bottom surface of the feed in and feed out channel and the outer wall of the circular conveyor belt.

[0032] As a further optimization solution, in order to timely discharge the moisture generated during the material drying process, the upper surface of the annular hot air circulation cover is evenly fixedly connected to a moisture removal pump.

[0033] As a further optimization scheme, in order to facilitate observation of the drying condition of the material in the annular hot air circulation cover, the side wall of the annular hot air circulation cover is equipped with an observation window structure, and the observation window structure includes:

[0034] A rectangular window is provided on the side wall of the annular hot air circulation cover;

[0035] A transparent tempered glass plate is fixedly installed in the rectangular window.

[0036] As a further optimization scheme, in order to control the hot air temperature in the annular hot air circulation cover, the annular conveyor belt and the outer wall of the annular hot air circulation cover are equipped with a temperature control structure, and the temperature control structure includes:

[0037] The temperature sensor installation through holes are evenly arranged on the top surface of the annular hot air circulation cover;

[0038] A temperature sensor is fixedly installed in the temperature sensor installation through hole, and a probe of the temperature sensor extends into the annular hot air circulation cover;

[0039] A controller is fixedly mounted on the outer wall of the annular conveyor belt, and the controller is electrically connected to the temperature sensor and the electric heating pipe respectively.

[0040] The utility model provides a hot air circulation system for food processing through improvement, which has the following improvements and advantages compared with the prior art:

[0041] The device fixes a circular hot air circulation hood on the upper edge of the circular conveyor belt. The circular conveyor belt feeds materials through the inlet and outlet channels. After feeding, the inlet and outlet channels are blocked by the lifting valve structure. The circular conveyor belt drives the materials to be conveyed clockwise, and a counterclockwise circular flow of hot air is formed in the circular hot air circulation hood. The counterclockwise hot air contacts the clockwise moving materials to dry them. There is no dead angle inside the circular hot air circulation hood, and the hot air circulates in a ring shape inside, thereby improving the uniformity of drying. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 It is a schematic diagram of the structure of the utility model;

[0044] Figure 2 This is a schematic diagram of the structure of the annular hot air circulation cover of the utility model;

[0045] Figure 3 It is a structural schematic diagram of the lifting valve structure of the utility model;

[0046] Figure 4 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0047] Description of reference numerals:

[0048] 1-annular conveyor belt, 2-annular hot air circulation cover, 21-spliced ​​annular cover, 211-annular shield, 212-annular baffle, 22-circulation fan, 221-fan mounting seat, 222-fan, 23-electric heating pipe, 24-air guide plate assembly, 3-inlet and outlet channel, 4-lifting valve structure, 41-vertical plate, 42-horizontal plate, 43-first electric push rod, 44-feed baffle, 5-lifting guide baffle structure, 51-strip window, 52-guide baffle, 53-second electric push rod, 54-connecting plate, 6-dehumidification pump, 7-temperature control structure, 71-temperature sensor, 72-temperature sensor mounting through hole, 73-controller, 8-observation window structure, 81-rectangular window, 82-transparent tempered glass plate, 9-strengthening ribs. DETAILED DESCRIPTION

[0049] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0050] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0051] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0052] See also Figure 1-4 The utility model provides a technical solution: a hot air circulation bellows for food processing, comprising:

[0053] The circular conveyor belt 1 has a circular hot air circulation cover 2 fixedly mounted on its upper edge. The circular conveyor belt 1 rotates clockwise. The circular conveyor belt 1 is formed by splicing and fixing four arc conveyor belts. The four arc conveyor belts can be disassembled for easy maintenance and replacement.

[0054] The hot air is circulated in a counterclockwise ring shape in the annular hot air circulation cover 2. There is no dead angle inside the annular hot air circulation cover 2. The hot air circulates in a ring shape inside the annular hot air circulation cover 2, thereby improving the uniformity of drying.

[0055] A feeding window is provided on the outer wall of the annular hot air circulation cover 2, and a feeding and discharging channel 3 is fixedly installed in the feeding window, and the feeding and discharging channel 3 is used for feeding and discharging materials;

[0056] A lifting valve structure 4 is fixedly mounted on one end of the inlet and outlet passage 3 near the annular hot air circulation cover 2. The lifting valve structure 4 is closed to block the feed window, and the lifting valve structure 4 is opened to expose the feed window for feeding and discharging;

[0057] A lifting guide baffle structure 5 is fixedly mounted on the upper surface of the annular hot air circulation cover 2 near the inlet and outlet channel 3;

[0058] The movable part of the lifting guide baffle structure 5 descends to guide the material to the inlet and outlet channel 3. When the device is not discharging materials, the movable part of the lifting guide baffle structure 5 is in a raised state.

[0059] In some embodiments, in order to form an annular hot air flow in the spliced ​​annular cover 21, and form multi-angle wind drying through the air guide plate assembly 24 to further improve the drying uniformity, the annular hot air circulation cover 2 includes:

[0060] Spliced ​​annular cover 21;

[0061] The inner ring surface and the outer ring surface of the inner wall of the spliced ​​annular cover 21 are evenly fixed with a circulation fan 22, and the wind force of the circulation fan 22 is directed counterclockwise toward the spliced ​​annular cover 21; the operation of multiple counterclockwise circulating fans 22 will form a counterclockwise circulating wind in the spliced ​​annular cover 21, and the wind flow carries the heat generated by the electric heating pipe 23 when it is powered on to form hot wind that circulates counterclockwise;

[0062] The inner and outer surfaces of the inner wall of the spliced ​​annular cover 21 are evenly and fixedly equipped with electric heating pipes 23;

[0063] The top surface of the inner wall of the spliced ​​annular cover 21 is evenly fixed with an air guide plate assembly 24, which consists of six wind shields, and the lower ends of the wind shields are inclined toward the annular conveyor belt 1. The circulating hot air is partially blocked and directed by the wind shields, so that this part of the hot air is blown from above to the material to be dried, thereby realizing multi-angle wind drying.

[0064] In some embodiments, in order to facilitate the removal of the annular baffle 212 when necessary, and to facilitate the inspection and maintenance of the internal components of the spliced ​​annular cover body 21, the spliced ​​annular cover body 21 includes an annular shield 211, and the inner annular surface of the annular shield 211 is designed to be open;

[0065] An annular baffle 212 is detachably fixedly mounted on the inner annular surface opening of the annular shield 211 by means of bolts.

[0066] In some embodiments, in order to generate circulating hot air in the spliced ​​annular cover 21, the circulating fan 22 includes:

[0067] The fan mounting seat 221 is fixedly mounted on the inner wall of the spliced ​​annular cover 21, and a fan mounting through hole is provided on the fan mounting seat 221;

[0068] A fan 222 is fixedly mounted in the fan mounting through hole, and the wind force of the fan 222 is directed counterclockwise toward the spliced ​​annular cover 21 .

[0069] In some embodiments, in order to open when feeding is needed and close after feeding, so that the hot air inside the annular hot air circulation cover 21 forms an annular circulation, the lifting valve structure 4 includes

[0070] There are two vertical plates 41 distributed in parallel, and the two vertical plates 41 are respectively fixedly connected to both sides of the upper edge of one end of the inlet and outlet channel 3 close to the annular hot air circulation cover 2;

[0071] The upper ends of the inner sides of the two vertical plates 41 are fixedly mounted with a horizontal plate 42;

[0072] The first electric push rod 43 is vertically fixedly assembled in the middle of the upper surface of the horizontal plate 42, and the telescopic end of the first electric push rod 43 penetrates the horizontal plate 42; the first electric push rod 43 is connected to an external power supply, and the lifting and lowering of the first electric push rod 43 drives the feed baffle 44 to lift and lower accordingly;

[0073] The feed baffle 44 is inserted into the feed and discharge channel 3 near one end of the annular hot air circulation cover 2. The upper end of the feed baffle 44 is fixedly connected to the telescopic lower end of the first electric push rod 43. The feed baffle 44 descends to block the inner wall of the discharge channel 3 in the feed window.

[0074] In some embodiments, in order to block and guide the dried materials after the circular conveyor belt 1 rotates multiple times and guides the dried materials to the inlet and outlet channels 3 for discharge, the lifting guide baffle structure 5 includes:

[0075] A strip window 51 is provided on the upper surface of the annular hot air circulation housing 2 near the inlet and outlet passage 3;

[0076] A guide baffle 52 is slidably inserted in the strip window 51, and the guide baffle 52 descends to block the inner wall of the annular hot air circulation cover 2;

[0077] The guide baffle 52 is inclined toward the inlet and outlet channel 3;

[0078] A connecting plate 54 is fixedly installed on the upper end of the guide baffle 52, and a second electric push rod 53 is fixedly installed between the bottom surface of the connecting plate 54 and the upper surface of the annular hot air circulation cover body 2. The second electric push rod 53 is connected to an external power supply and drives the guide baffle 52 to rise and fall.

[0079] In some embodiments, in order to enhance the mechanical strength of the feed in and feed out channel 3 , reinforcing ribs 9 are fixedly connected between the bottom surface of the feed in and feed out channel 3 and the outer wall of the circular conveyor belt 1 .

[0080] In some embodiments, in order to timely discharge moisture generated during the material drying process, the upper surface of the annular hot air circulation cover 2 is evenly fixedly connected to a moisture removal pump 6.

[0081] In some embodiments, in order to facilitate observation of the drying of the material in the annular hot air circulation cover 2, the side wall of the annular hot air circulation cover 2 is equipped with an observation window structure 8, and the observation window structure 8 includes:

[0082] A rectangular window 81 is provided on the side wall of the annular hot air circulation cover 2;

[0083] A transparent tempered glass plate 82 is fixedly mounted in the rectangular window 81 .

[0084] In some embodiments, in order to control the hot air temperature in the annular hot air circulation cover 2, a temperature control structure 7 is installed on the outer wall of the annular conveyor belt 1 and the annular hot air circulation cover 2. The temperature control structure 7 includes:

[0085] The temperature sensor installation through hole 72 is evenly arranged on the top surface of the annular hot air circulation cover 2;

[0086] A temperature sensor 71 is fixedly mounted in the temperature sensor mounting through hole 72, and a probe of the temperature sensor 71 extends into the annular hot air circulation cover 2;

[0087] A controller 73 is fixedly mounted on the outer wall of the circular conveyor belt 1, and the controller 73 is electrically connected to the temperature sensor 71 and the electric heating tube 23 respectively; when the value detected by the temperature sensor 71 exceeds the threshold value, it transmits a signal to the controller 73, and the controller 73 controls the electric heating tube 23 to turn off or cool down for a period of time to achieve temperature regulation and avoid excessive temperature.

[0088] Working principle:

[0089] The device fixes a circular hot air circulation cover 2 on the upper edge of a circular conveyor belt 1. The circular conveyor belt 1 is fed through a feed channel 3. After feeding, the feed channel 3 is blocked by a lifting valve structure 4. The circular conveyor belt 1 drives the material to be transported clockwise.

[0090] The inner ring surface and the outer ring surface of the inner wall of the spliced ​​annular cover 21 of the annular hot air circulation cover 2 are evenly fixed with a circulation fan 22, and the wind force of the circulation fan 22 is directed counterclockwise toward the spliced ​​annular cover 21; the operation of multiple counterclockwise circulating fans 22 will form a counterclockwise circulating wind in the spliced ​​annular cover 21, and the wind flow carries the heat generated by the electric heating tube 23 to form a counterclockwise circulating hot air, and the counterclockwise hot air contacts the clockwise moving material to dry it.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A hot air circulation bellows for food processing, characterized in that: include: A circular conveyor belt (1) having an upper edge on which a circular hot air circulation cover (2) is fixedly mounted, and the circular conveyor belt (1) rotates clockwise; The outer wall of the annular hot air circulation cover (2) is provided with a material feeding window, and a material feeding and discharging channel (3) is fixedly installed in the material feeding window; The inlet and outlet passage (3) is fixedly equipped with a lifting valve structure (4) at one end close to the annular hot air circulation cover (2); A lifting guide baffle structure (5) is fixedly mounted on the upper surface of the annular hot air circulation cover (2) near the inlet and outlet passage (3); The movable part of the lifting guide baffle structure (5) descends to guide the material to the inlet and outlet channel (3).

2. A hot air circulation bellows for food processing according to claim 1, characterized in that: The annular hot air circulation cover (2) comprises: A spliced ​​annular cover (21); The inner annular surface and the outer annular surface of the inner wall of the spliced ​​annular cover (21) are evenly and fixedly equipped with a circulation fan (22), and the wind force of the circulation fan (22) is directed counterclockwise toward the spliced ​​annular cover (21); The inner annular surface and the outer annular surface of the inner wall of the spliced ​​annular cover (21) are evenly and fixedly equipped with electric heating pipes (23); The top surface of the inner wall of the spliced ​​annular cover (21) is evenly and fixedly equipped with an air guide plate assembly (24), the air guide plate assembly (24) being composed of six air shields, and the lower ends of the air shields are inclined toward the annular conveyor belt (1).

3. A hot air circulation bellows for food processing according to claim 2, characterized in that: The spliced ​​annular cover body (21) comprises an annular protective cover (211), and the inner annular surface of the annular protective cover (211) is designed to be open; An annular baffle (212) is detachably fixedly mounted on the inner annular surface opening of the annular shield (211) by means of bolts.

4. A hot air circulation bellows for food processing according to claim 2, characterized in that: The circulating fan (22) comprises: A fan mounting seat (221) is fixedly mounted on the inner wall of the spliced ​​annular cover (21), and a fan mounting through hole is provided on the fan mounting seat (221); A fan (222) is fixedly mounted in the fan mounting through hole, and the wind force of the fan (222) is directed counterclockwise toward the spliced ​​annular cover body (21).

5. A hot air circulation bellows for food processing according to claim 1, characterized in that: The lifting valve structure (4) comprises Two vertical plates (41) are arranged in parallel, and the two vertical plates (41) are respectively fixedly connected to both sides of the upper edge of one end of the inlet and outlet channel (3) close to the annular hot air circulation cover (2); A transverse plate (42) is fixedly mounted on the upper ends of the inner sides of the two vertical plates (41); A first electric push rod (43) is vertically fixedly mounted on the middle portion of the upper surface of the horizontal plate (42), and a telescopic end of the first electric push rod (43) penetrates the horizontal plate (42); A feed baffle (44) is inserted into one end of the feed and discharge channel (3) close to the annular hot air circulation cover (2), and the upper end of the feed baffle (44) is fixedly connected to the telescopic lower end of the first electric push rod (43).

6. A hot air circulation bellows for food processing according to claim 1, characterized in that: The lifting type guide baffle structure (5) comprises: A strip window (51) is provided on the upper surface of the annular hot air circulation cover (2) near the inlet and outlet passage (3); A guide baffle (52) is slidably inserted in the strip-shaped window (51), and the guide baffle (52) descends to block the inner wall of the annular hot air circulation cover (2); The guide baffle (52) is inclined toward the inlet and outlet channel (3); A connecting plate (54) is fixedly mounted on the upper end of the guide baffle (52), and a second electric push rod (53) is fixedly mounted between the bottom surface of the connecting plate (54) and the upper surface of the annular hot air circulation cover (2).

7. A hot air circulation bellows for food processing according to claim 1, characterized in that: A reinforcing rib (9) is fixedly connected between the bottom surface of the inlet and outlet channel (3) and the outer wall of the annular conveyor belt (1).

8. A hot air circulation bellows for food processing according to claim 1, characterized in that: The upper surface of the annular hot air circulation cover (2) is evenly and fixedly connected to a moisture removal pump (6).

9. A hot air circulation bellows for food processing according to claim 1, characterized in that: The side wall of the annular hot air circulation cover (2) is equipped with an observation window structure (8), and the observation window structure (8) comprises: A rectangular window (81) is provided on the side wall of the annular hot air circulation cover (2); A transparent tempered glass plate (82) is fixedly mounted in the rectangular window (81).

10. A hot air circulation bellows for food processing according to claim 2, characterized in that: The outer walls of the annular conveyor belt (1) and the annular hot air circulation cover (2) are equipped with a temperature control structure (7), and the temperature control structure (7) comprises: A temperature sensor mounting through hole (72) is evenly arranged on the top surface of the annular hot air circulation cover (2); A temperature sensor (71) is fixedly mounted in the temperature sensor mounting through hole (72), and a probe of the temperature sensor (71) extends into the annular hot air circulation cover (2); A controller (73) is fixedly mounted on the outer wall of the annular conveyor belt (1), and the controller (73) is electrically connected to the temperature sensor (71) and the electric heating pipe (23) respectively.

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