Feed raw material drying machine

Abstract

The utility model relates to a feedstuff dryer. Comprising a machine base, a drying box, an isolation box and a cooling box are installed on the machine base, and door opening and closing devices are installed on the two butt joint faces of the isolation box, an outer port of the drying box and an outer port of the cooling box; a hot air supply device is mounted on the drying box; a first transverse partition plate is fixedly connected in the cooling box and divides an inner cavity of the cooling box into an upper cavity and a lower cavity, a heat exchanger is installed in the upper cavity, and the air outlet and the induced draft fan are installed on the cooling box. The drying device further comprises a belt type conveying device installed on the machine base, and a material turning device is arranged in the drying box. The material turning device comprises a material turning rotating shaft, and a plurality of groups of material turning stirring blades are mounted on the peripheral wall of the material turning rotating shaft; the device further comprises a rotary walking driving assembly. Raw materials on the conveying belt can be stirred and turned over during drying, the drying effect and the working efficiency of the raw materials are improved, heat of dried gas can be recycled, heat waste is avoided, and the environment-friendly consciousness is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of drying equipment, in particular to a feed raw material drying machine. Background Art

[0002] Feed is a general term for food for raised animals. In a narrower sense, feed mainly refers to food for animals raised in agriculture or animal husbandry. Feed includes more than ten varieties of feed raw materials such as soybeans, soybean meal, corn, fish meal, amino acids, miscellaneous meal, whey powder, oils, meat and bone meal, grains, and feed additives.

[0003] Drying equipment is used in the production of feed. Drying equipment refers to a combination of a series of mechanical equipment that uses certain technical means to dry the moisture or other liquids on the surface of an object. Existing drying equipment usually uses electric heating wires to heat the external environment gas into high-temperature gas to dry the object. There are two main drying methods for drying equipment. One is that the drying equipment is connected to a box body, and the hot air is transferred to the box body for indoor drying. The other is that the drying equipment is connected to a tunnel and the drying is carried out through a conveyor belt. At present, most feed processing companies use tunnel dryers to dry feed raw materials.

[0004] In the actual working process, it was found that there are certain disadvantages when using a tunnel dryer to dry feed raw materials: first, since the raw materials are placed statically on the drying conveyor belt, when encountering uneven spreading, piled, and thick situations, only the surface raw materials can be effectively dried. The internal raw materials, especially the raw materials attached to the surface of the conveyor belt, are heated slowly and cannot be thoroughly dried, thus affecting the quality of the produced feed; secondly, during the drying process, a large amount of gas carrying heat and steam is generated inside the tunnel. The above-mentioned gas is mostly directly discharged from the open ends of the tunnel or the air outlet installed on the tunnel. The heat in the gas cannot be recovered, which will lead to heat waste and is not in line with environmental awareness. Utility Model Content

[0005] The utility model provides a feed raw material dryer with a reasonable structural design to solve the technical problems existing in the known technology. The utility model can stir and turn the raw materials on the conveyor belt during drying, thereby improving the drying effect and work efficiency of the raw materials, and can recover the heat of the gas after drying, avoiding heat waste and meeting environmental awareness.

[0006] The utility model adopts the following technical scheme to solve the technical problems existing in the known technology: a feed raw material dryer comprises a machine base, on which a drying box, an isolation box and a cooling box which are connected in sequence are installed, opening and closing door devices are installed on the two connecting surfaces of the isolation box, and opening and closing door devices are installed on the outer ports of the drying box and the cooling box; a hot air supply device for providing hot air to the inner cavity of the drying box is installed on the drying box; a first transverse partition is fixedly connected in the cooling box to divide the inner cavity of the cooling box into two connected upper and lower chambers, a heat exchanger is installed in the upper chamber, and a heat exchanger is installed in the cooling box; and a heat exchanger is installed in the cooling box. An air outlet connected to the upper chamber is installed on the box, and the air outlet is connected to the induced draft fan through a gas pipeline; it also includes a belt transmission device installed on the machine base and penetrating the drying box, the isolation box and the cooling box, and a turning device is arranged in the drying box, which spans the transmission surface of the belt transmission device and can reciprocate along the transmission direction of the belt transmission device; the turning device includes a turning shaft spanning the transmission surface of the belt transmission device, and a plurality of groups of turning stirring blades distributed along its axial direction are installed on the outer peripheral wall of the turning shaft; it also includes a rotating travel drive assembly, which is used to drive the turning shaft to rotate and reciprocate laterally.

[0007] The advantages and positive effects of the utility model are as follows: the utility model provides a feed raw material dryer, which can form a chamber for drying operation by setting a drying box and arranging opening and closing door devices at the two ports of the drying box, and can provide hot air to the chamber for drying operation by installing a hot air supply device on the drying box, so as to dry the feed raw materials in the chamber on the belt transmission device; by setting a turning device, the material on the belt transmission device can be stirred and turned, so that the material on the transmission surface can fully contact with the drying hot air, avoiding the phenomenon of incomplete drying due to excessive accumulation of materials, thereby improving the drying effect and work efficiency; by setting a cooling box and arranging opening and closing door devices at the two ports of the cooling box, it can be avoided that the gas that has completed the drying operation is discharged outside the dryer without heat recovery operation, and by setting a heat exchanger, the gas that has completed the drying operation can be subjected to heat recovery operation, avoiding the direct discharge of gas containing a large amount of heat to cause energy waste, saving resources, and complying with environmental awareness.

[0008] Preferably: multiple groups of second horizontal partitions and multiple groups of vertical partitions are fixedly connected in the drying box to divide its inner cavity into a first heating chamber, a second heating chamber and a drying chamber, and the first heating chamber and the second heating chamber are both connected to the drying chamber; two groups of hot air supply devices are provided, and the two groups of hot air supply devices are respectively installed in the first heating chamber and the second heating chamber; and also include two groups of air inlets installed on the drying box and respectively connected to the first heating chamber and the second heating chamber.

[0009] Preferably: the hot air supply device includes an air heating pipe electrically connected to a power source, and also includes a drying blower installed in the heating chamber, and the drying blower is connected to the drying chamber.

[0010] Preferably: two sets of material turning mounting frames are installed on the machine base and are respectively located on both sides of the belt transmission device, and channel steels extending along the transmission direction of the belt transmission device are fixedly connected to the top surfaces of the two sets of material turning mounting frames. The two sets of channel steels are arranged opposite to each other and the rotating travel drive components are installed on the two sets of channel steels.

[0011] Preferably: the rotating travel drive assembly includes a first movable seat and a second movable seat which are relatively arranged and movably connected to the two groups of channel steels respectively, the material turning shaft is rotatably connected to the first movable seat and the second movable seat through a rolling bearing, and the first movable seat and the second movable seat are both equipped with travel guide wheels which are in rolling contact with the corresponding channel steels; it also includes travel chains installed on each channel steel and arranged along its length direction, and drive sprockets are keyed at both ends of the material turning shaft, and each drive sprocket is respectively engaged with the corresponding travel chain; it also includes a material turning motor installed on the second movable seat or the first movable seat, and a drive transmission pair is installed between the output shaft of the material turning motor and the material turning shaft.

[0012] Preferably: the opening and closing door device includes two sets of longitudinally arranged guide angle steels fixed on the machine base, longitudinally movable opening and closing doors are slidably penetrated on the two sets of guide angle steels, and also includes a lifting drive member for driving the opening and closing door to move up and down.

[0013] Preferably: a ventilation pipe connected to the cavity of the isolation box is installed on the top of the isolation box, and a slot is opened on the side wall of the isolation box and a ventilation window is installed at the slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main cross-sectional structure of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the material turning device in the utility model;

[0016] Figure 3 yes Figure 2 AA cross-sectional structure diagram in;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the door opening and closing device in the utility model;

[0018] Figure 5 It is a three-dimensional structural schematic diagram of the belt transmission device in the utility model.

[0019] In the figure: 1, machine base; 2, belt transmission device; 3, material turning mounting frame; 4, drying chamber; 5, opening and closing door device; 5-1, opening and closing door; 5-2, guide angle steel; 5-3, drive mounting frame; 5-4, lifting door seat; 5-5, lifting drive member; 6, drying blower; 7, first heating chamber; 8, drying box; 9, second heating chamber; 10, isolation box; 11, cooling box; 12, induced draft fan; 13, discharge chute; 14. First transverse partition; 15. Heat exchanger; 16. Second transverse partition; 17. Air heating pipe; 18. Vertical partition; 19. Turning device; 19-1. First moving seat; 19-2. Driving sprocket; 19-3. Turning stirring blade; 19-4. Driving transmission pair; 19-5. Traveling chain; 19-6. Turning motor; 19-7. Second moving seat; 19-8. Traveling guide wheel; 19-9. Turning shaft. DETAILED DESCRIPTION

[0020] In order to further understand the content, features and effects of the present invention, the following embodiments are described in detail as follows:

[0021] See also Figure 1 The feed material dryer of the utility model comprises a machine base 1, on which a drying box 8, an isolation box 10 and a cooling box 11 are mounted in sequence, and an opening and closing door device 5 is mounted on both the butting surfaces of the isolation box 10, and an opening and closing door device 5 is mounted on the outer ports of the drying box 8 and the cooling box 11. In addition, a ventilation pipe connected to the cavity of the isolation box 10 is mounted on the top of the isolation box 10, and a notch is opened on the side wall of the isolation box 10 and a ventilation window is mounted at the notch.

[0022] See also Figure 4 In this embodiment, the above-mentioned door opening and closing device 5 includes two sets of guide angle steels 5-2 fixedly arranged longitudinally on the machine base 1, and a longitudinally movable door opening and closing door 5-1 is slidably penetrated on the two sets of guide angle steels 5-2, and also includes a lifting drive member 5-5 for driving the door opening and closing door 5-1 to move up and down. In addition, the door opening and closing device 5 also includes a driving mounting frame 5-3, and the driving mounting frame 5-3 is installed at the port of the corresponding drying box 8 or cooling box 11, and the cylinder of the lifting drive member 5-5 is installed on the driving mounting frame 5-3; the protruding end of the lifting drive member 5-5 is arranged downward, and a lifting door seat 5-4 is installed at the protruding end of the lifting drive member 5-5, and the lifting door seat 5-4 is installed on the top of the door opening and closing door 5-1. Among them, the above-mentioned lifting drive member 5-5 can adopt a linear cylinder, a hydraulic cylinder or an electric cylinder. In this embodiment, the lifting drive member 5-5 adopts a linear cylinder.

[0023] like Figure 1As shown, a hot air supply device for providing hot air to the inner cavity of the drying box 8 is installed; further, in order to perform segmented drying operations on the materials at different temperatures, multiple groups of second transverse partitions 16 and multiple groups of vertical partitions 18 are fixedly connected in the drying box 8, and the multiple groups of second transverse partitions 16 and multiple groups of vertical partitions 18 work together to divide the inner cavity of the drying box 8 into a first heating chamber 7, a second heating chamber 9 and a drying chamber 4, wherein the first heating chamber 7 and the second heating chamber 9 are both connected to the drying chamber 4.

[0024] In addition, in this embodiment, the above-mentioned hot air supply device is provided with two groups, and the two groups of hot air supply devices are respectively installed in the first heating chamber 7 and the second heating chamber 9; Figure 1 As shown, the hot air supply device includes an air heating pipe 17 electrically connected to a power source, and also includes a drying blower 6 installed in the heating chamber, and the drying blower 6 is connected to the drying chamber 4. In this embodiment, the fan body of the drying blower 6 is installed in the corresponding heating chamber, and the driving motor of the drying blower 6 is installed on the outer wall of the drying box 8. In addition, a heat preservation layer is provided on the outer wall of the drying box 8.

[0025] In addition, in order to facilitate air intake, the present embodiment further includes two groups of air inlets installed on the drying box 8 and connected to the first heating chamber 7 and the second heating chamber 9 respectively.

[0026] like Figure 1 As shown, a first transverse partition 14 is fixedly arranged in the cooling box 11, and the first transverse partition 14 divides the inner cavity of the cooling box 11 into two upper and lower chambers connected to each other. A heat exchanger 15 is installed in the upper chamber. In order to improve the efficiency of heat recovery, in this embodiment, at least two groups of the heat exchangers 15 are provided. This embodiment also includes an air outlet installed on the cooling box 11 and connected to the upper chamber, and the air outlet is connected to the induced draft fan 12 through a gas pipeline.

[0027] like Figure 1 As shown, this embodiment further includes a belt transmission device 2 installed on the machine base 1 and sequentially passing through the drying box 8, the isolation box 10 and the cooling box 11, and a discharge chute 13 fixedly connected to the machine base 1 is provided below the discharge port of the belt transmission device 2. Figure 5 As shown, in this embodiment, in order to prevent the material from falling to the outside of the transmission device during the drying operation and causing waste of material resources, the above-mentioned belt transmission device 2 adopts a concave belt transmission device; the two ends of the belt transmission device 2 extend to the outside of the drying box 8 and the cooling box 11 respectively; in addition, the lower end of the opening and closing door 5-1 in the opening and closing door device 5 is adapted to the concave shape of the transmission surface of the belt transmission device 2.

[0028] A material turning device 19 is arranged in the drying box 8, which crosses the transmission surface of the belt transmission device 2 and can reciprocate along the transmission direction of the belt transmission device 2; see further Figure 2 The material turning device 19 includes a material turning shaft 19-9 that spans the transmission surface of the belt transmission device 2, and a plurality of groups of material turning stirring blades 19-3 distributed along its axial direction are installed on the outer peripheral wall of the material turning shaft 19-9; it also includes a rotating travel drive assembly for driving the material turning shaft 19-9 to rotate and move back and forth laterally.

[0029] like Figure 1 and Figure 2 As shown, for the convenience of installation, two sets of material turning mounting frames 3 are installed on the machine base 1 and are respectively located on both sides of the belt transmission device 2. Channel steels extending along the transmission direction of the belt transmission device 2 are fixedly connected to the top surfaces of the two sets of material turning mounting frames 3. The two sets of channel steels are arranged opposite to each other and the rotating travel drive components are installed on the two sets of channel steels.

[0030] like Figure 2 and Figure 3 As shown, the above-mentioned rotating walking drive assembly includes a first movable seat 19-1 and a second movable seat 19-7 which are relatively arranged and movably connected to the two groups of channel steels respectively, and the material turning shaft 19-9 is rotatably connected to the first movable seat 19-1 and the second movable seat 19-7 through rolling bearings, and walking guide wheels 19-8 which are in rolling contact with the corresponding channel steels are installed on the first movable seat 19-1 and the second movable seat 19-7; it also includes a walking chain 19-5 installed on each channel steel and arranged along its length direction, and drive sprockets 19-2 are key-connected at both ends of the material turning shaft 19-9, and each drive sprocket 19-2 is respectively meshed with the corresponding walking chain 19-5; it also includes a material turning motor 19-6 installed on the second movable seat 19-7 or the first movable seat 19-1, and a driving transmission pair 19-4 is installed between the output shaft of the material turning motor 19-6 and the material turning shaft 19-9.

[0031] The driving transmission pair 19-4 adopts a sprocket transmission pair, which mainly includes a driving sprocket keyed on the output shaft of the material turning motor 19-6, and a driven sprocket keyed on the material turning shaft 19-9, and a chain in a closed state is connected between the driving sprocket and the driven sprocket. In addition, the driving sprocket adopts a small sprocket, and the driven sprocket adopts a large sprocket.

[0032] In the actual working process, the material turning motor 19-6 is started to drive the active sprocket installed thereon to rotate. Under the action of the chain, the driven sprocket installed on the material turning shaft 19-9 can be driven to rotate, thereby driving the material turning shaft 19-9 to rotate. The rotating material turning shaft 19-9 can drive the multiple groups of material turning stirring blades 19-3 installed thereon to flip; at the same time, the rotating material turning shaft 19-9 can drive the driving sprocket 19-2 installed at its end to rotate synchronously. Since the driving sprocket 19-2 is meshed with the corresponding walking chain 19-5, the rotating material turning shaft 19-9 and the driving sprocket 19-2 can drive the second movable seat 19-7 and the first movable seat 19-1 to move along the transmission direction of the belt transmission device 2, thereby driving the material turning shaft 19-9 to move along the transmission direction of the belt transmission device 2, thereby achieving the purpose of stirring and turning the material on the transmission surface of the belt transmission device 2.

[0033] Working process:

[0034] In the actual working process, the feed raw material is transferred to the belt conveyor 2 and the belt conveyor 2 is started. After the material to be dried is transferred to the front position of the discharge port of the drying box 8, the belt conveyor 2 stops running, and the opening and closing door devices 5 at the two ports of the drying box 8 are started, so that the protruding end of the lifting drive member 5-5 in the opening and closing door device 5 is extended, and then the two ports of the drying box 8 are closed;

[0035] Then start the drying blower 6 and the air heating pipe 17 to provide drying hot air into the drying chamber 4 of the drying box 8, and at the same time start the turning motor 19-6 in the turning device 19. Under the action of the driving transmission pair 19-4, the running turning motor 19-6 can drive the turning shaft 19-9 to rotate and move along the transmission direction of the belt transmission device 2. During the working process, the forward and reverse rotation of the turning motor 19-6 can drive the rotating turning shaft 19-9 to move back and forth horizontally, thereby achieving the purpose of turning the material on the transmission surface of the belt transmission device 2, so that the material on the transmission surface can be fully in contact with the drying hot air, avoiding the phenomenon of incomplete drying due to excessive accumulation of materials;

[0036] After a preset period of drying, the opening and closing door devices 5 located on the two butt joint surfaces of the isolation box 10 are started, and then the ports of the two butt joint surfaces are opened, so that the gas containing steam and heat flows into the cooling box 11 after passing through the isolation box 10. At this time, the opening and closing door device 5 at the outer port of the cooling box 11 is in a state of closing the port, and the induced draft fan 12 is started, so that the gas containing steam and heat flows through the heat exchanger 15. The heat exchanger 15 can perform heat exchange operation on the gas flowing through, avoiding the waste of resources caused by the direct discharge of heat with the gas, and the gas that completes the heat exchange is discharged after the induced draft fan 12;

[0037] After completing the heat exchange operation, all the opening and closing door devices 5 are started and the corresponding ports are opened. The belt transmission device 2 is started, driving the material that has completed the drying operation to move forward to the outside of the dryer. The material falls onto the discharge chute 13 for transfer or collection (a linear transmission device or a collection container is provided below the discharge chute 13). At the same time, the feed raw materials to be dried are transferred to the feeding end of the belt transmission device 2, and the above-mentioned drying operation is repeated.

Claims

1. A feed raw material dryer, characterized in that: The invention comprises a machine base (1), on which a drying box (8), an isolation box (10) and a cooling box (11) are mounted in sequence, and opening and closing door devices (5) are mounted on both the butting surfaces of the isolation box (10), and opening and closing door devices (5) are mounted on the outer ports of the drying box (8) and the cooling box (11); a hot air supply device for supplying hot air to the inner cavity of the drying box (8) is mounted on the drying box (8); a first transverse partition (14) is fixedly connected to the cooling box (11) to divide the inner cavity into two upper and lower chambers that are connected, and a heat exchanger (15) is mounted in the upper chamber; and an air outlet mounted on the cooling box (11) and connected to the upper chamber, wherein the air outlet is connected to the upper chamber through a gas pipeline. The machine is connected to an induced draft fan (12); it also includes a belt transmission device (2) installed on the machine base (1) and penetrating a drying box (8), an isolation box (10) and a cooling box (11); a material turning device (19) is arranged in the drying box (8) and spans the transmission surface of the belt transmission device (2) and can reciprocate along the transmission direction of the belt transmission device (2); the material turning device (19) includes a material turning shaft (19-9) spanning the transmission surface of the belt transmission device (2); a plurality of groups of material turning stirring blades (19-3) distributed along the axial direction of the material turning shaft (19-9) are installed on the outer peripheral wall of the material turning shaft (19-9); and it also includes a rotating travel drive assembly for driving the material turning shaft (19-9) to rotate and reciprocate laterally.

2. The feed material drying machine according to claim 1, characterized in that: A plurality of groups of second transverse partitions (16) and a plurality of groups of vertical partitions (18) are fixedly connected in the drying box (8) to divide its inner cavity into a first heating chamber (7), a second heating chamber (9) and a drying chamber (4); the first heating chamber (7) and the second heating chamber (9) are both connected to the drying chamber (4); two groups of hot air supply devices are provided, and the two groups of hot air supply devices are respectively installed in the first heating chamber (7) and the second heating chamber (9); and two groups of air inlets are also included, which are installed on the drying box (8) and are respectively connected to the first heating chamber (7) and the second heating chamber (9).

3. The feed material dryer according to claim 2, characterized in that: The hot air supply device comprises an air heating pipe (17) electrically connected to a power source, and also comprises a drying blower (6) installed in the heating chamber, wherein the drying blower (6) is in communication with the drying chamber (4).

4. The feed material drying machine according to claim 1, characterized in that: Two sets of material turning mounting frames (3) are mounted on the machine base (1) and are respectively located on both sides of the belt transmission device (2). Channel steels extending along the transmission direction of the belt transmission device (2) are fixedly connected to the top surfaces of the two sets of material turning mounting frames (3). The two sets of channel steels are arranged opposite to each other and the rotating travel drive components are mounted on the two sets of channel steels.

5. The feed material dryer according to claim 4, characterized in that: The rotary travel drive assembly comprises a first movable seat (19-1) and a second movable seat (19-7) which are arranged opposite to each other and are respectively movably connected to the two groups of channel steels; a material turning shaft (19-9) is rotatably connected to the first movable seat (19-1) and the second movable seat (19-7) through a rolling bearing; and a travel guide wheel (19-8) which is in rolling contact with the corresponding channel steel is installed on the first movable seat (19-1) and the second movable seat (19-7); and a guide wheel (19-8) which is installed on each channel steel along its length is also included. The invention also comprises a traveling chain (19-5) arranged in a direction, a driving sprocket (19-2) is key-connected at both ends of the material turning shaft (19-9), and each driving sprocket (19-2) is respectively meshed with the corresponding traveling chain (19-5); and also comprises a material turning motor (19-6) installed on the second moving seat (19-7) or the first moving seat (19-1), and a driving transmission pair (19-4) is installed between the output shaft of the material turning motor (19-6) and the material turning shaft (19-9).

6. The feed material dryer according to claim 1, characterized in that: The door opening and closing device (5) comprises two sets of guide angle steels (5-2) fixedly connected to the machine base (1) and arranged longitudinally, a door opening and closing device (5-1) which is longitudinally movable and slidingly penetrates the two sets of guide angle steels (5-2), and a lifting drive member (5-5) for driving the door opening and closing device (5-1) to move upward and downward.

7. The feed material dryer according to claim 1, characterized in that: A ventilation pipe connected to the cavity of the isolation box (10) is installed on the top of the isolation box (10), and a slot is opened on the side wall of the isolation box (10) and a ventilation window is installed at the slot.

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