Feed hopper with flow control device for infrared drying furnace

Abstract

The utility model discloses a feed hopper with a flow control device for an infrared drying furnace, which comprises a hopper, a flow control plug and a blanking frame, the hopper is a V-shaped hopper with a rectangular opening, two square tubes are arranged in the hopper, a penetrating screw is mounted in the middle of each square tube through a nut, the flow control plug is hoisted at the lower end of each screw, and the blanking frame is connected with the flow control plug. The position of the flow control plug is adjusted to be high and low through the adjusting nut, the flow control plug is located in a discharging opening of the hopper, the lower portion of the hopper is connected with the discharging frame and serves as a channel from raw materials in the hopper to a chain plate, and an adjusting plate used for adjusting the thickness of a material layer is installed on one face, perpendicular to the moving direction of the chain plate, of the discharging frame. Raw materials fall on the chain plate through the blanking frame, the thickness and the humidity of the raw materials in the hopper are adjusted to be uniform under the action of the flow control device, the product quality is ensured, and when a gap is formed between the flow control plug and the hopper, the raw materials fall, the chain plate cannot be deformed, and the raw materials cannot be splashed to the end of the chain plate and fall to the bottom of a hearth.

Description

TECHNICAL FIELD

[0001] The utility model belongs to infrared drying furnace technical field, more particularly to a kind of feeding hopper of infrared drying furnace with flow control device. BACKGROUND

[0002] Infrared drying furnace chain and chain plate installed in furnace form closed loop, and the raw material to be dried comes from top side feed inlet, is laid on chain plate, and chain plate is continuously moved to the other side in furnace, and raw material is discharged from bottom discharge port.The top of chain plate is heated by infrared quartz electric heater, and chain and chain plate are made of stainless steel.The hopper is installed on the top of the equipment, and the raw material falls on the chain plate under the action of gravity.

[0003] The inventor found that these prior art at least has the following technical problems in actual use process:

[0004] At present, some infrared drying furnace equipment uses screw conveyor to convey material in hopper, and this feeding mode has the following problems: the raw material laid on chain plate is not uniform in thickness, causing part of the raw material to be dried and part of the raw material to be over-dried; a small amount of raw material splashes to both ends of chain plate and leaks to the bottom of furnace, which also causes part of the undried material to directly fall to the bottom of furnace, and manual cleaning is required, which affects production and increases labor intensity of employees; sometimes raw material is contaminated with oil stains, which seriously affects product quality; and electric energy is consumed without achieving the purpose of drying.

[0005] Another part of the infrared drying furnace equipment is connected with a material falling frame at the bottom of the hopper, and the height of the bottom of the material falling frame from the chain plate is about 30mm, and the raw material from the hopper is all pressed on the chain plate through the material falling frame, and when the chain plate moves to the furnace, the raw material is brought into the furnace for drying. This feeding mode also causes a small amount of raw material to splash to both ends of chain plate, so that undried material directly falls to the bottom of furnace, which seriously affects product quality; some hoppers have large volume and are filled with a lot of raw material, and the raw material directly pressed on the chain plate from the material falling frame causes the chain plate at this position to be easily deformed under pressure, which affects safe production. INVENTION CONTENTS

[0006] In order to overcome the above-mentioned deficiencies, a kind of infrared drying furnace belt flow control device's feed hopper is provided, raw materials are dropped in chain plate through blanking frame, the thickness of raw material layer on chain plate is adjusted under the action of flow control device in hopper, and raw materials are not all pressed on chain plate, raw materials are evenly laid on chain plate, product humidity is also uniform, product quality is ensured, when gap is generated between flow control plug and hopper, raw materials start to fall, raw materials fall on chain plate through blanking frame under hopper, and chain plate is not deformed, ensure the safe operation of chain plate in furnace, raw materials are not splashed to the end of chain plate and dropped to the bottom of furnace, so cleaning is not needed, production is improved, and labor intensity of staff is reduced.

[0007] In order to achieve the above-mentioned purposes, the technical scheme of the utility model is provided: a kind of infrared drying furnace belt flow control device's feed hopper.It includes hopper, flow control plug, blanking frame, the hopper is the V-shaped hopper with rectangular opening, two square tubes are arranged in the hopper, the middle part of each square tube is installed with the threaded rod penetrating through the nut, the lower end of the threaded rod is hoisted with the flow control plug, the position of flow control plug is adjusted by adjusting nut, the flow control plug is located in the blanking port of hopper, the lower part of hopper is connected with blanking frame, as the channel of raw materials in hopper to chain plate, adjusting plate for adjusting the thickness of material layer is mounted on the face of blanking frame perpendicular to the movement direction of chain plate.

[0008] According to the further preferred technical scheme of the utility model, the lower end of the hopper and the upper end of the blanking frame are provided with H-shaped flanges, the lower end of the hopper and the upper end of the blanking frame are located in the square frame in the middle of the H-shaped flange, and the hopper and the blanking frame are installed together by the flanges, and the flanges are installed on the rack at both ends.

[0009] According to the further preferred technical scheme of the utility model, the upper part of the adjusting plate is provided with an equal height block, the equal height block is installed on the fixed support with a waist-shaped groove by bolts, and the fixed support is arranged on the flange.

[0010] According to the further preferred technical scheme of the utility model, the width of the adjusting plate is greater than the width of the chain plate, and the blanking frame forms an extension structure corresponding to the two sides of the adjusting plate to limit the adjusting plate.

[0011] According to the further preferred technical scheme of the utility model, the flow control plug is formed by splicing the upper part of the right prism with the lower part of the inverted right prism, and the two right prisms are connected at the bottom.

[0012] The further preferred technical scheme of the feeding hopper of the infrared drying furnace belt flow control device is that the angle of the two ends of the square tube is consistent with the angle of the two side walls of the hopper, and the square tube is spot-welded on the inner wall of the hopper.

[0013] The further preferred technical scheme of the feeding hopper of the infrared drying furnace belt flow control device is that the material of the inner side of the hopper is a 4mm-thick 304 stainless steel plate, and the outer side is a 10mm-thick Q235 carbon steel plate, and the hopper is made by welding, and the inner empty size of the bottom of the hopper is completely consistent with the size of the blanking frame below.

[0014] The further preferred technical scheme of the feeding hopper of the infrared drying furnace belt flow control device is that the upper end of the hopper is provided with two opposite hanging ears.

[0015] The further preferred technical scheme of the feeding hopper of the infrared drying furnace belt flow control device is that the lower end of the screw rod is welded on the flow control plug, and the square tube, the screw rod and the flow control plug are all made of 304 stainless steel.

[0016] The further preferred technical scheme of the feeding hopper of the infrared drying furnace belt flow control device is that the middle part of the square tube is provided with a hole for passing through the screw rod, and the diameter of the screw rod is smaller than the diameter of the hole of the square tube.

[0017] Compared with the prior art, the technical scheme of the utility model has the following advantages / benefits:

[0018] 1. The raw materials fall on the chain plate through the blanking frame, and the thickness of the raw materials on the chain plate is adjusted by the flow control device, so that the raw materials are not all pressed on the chain plate, the thickness of the raw materials on the chain plate is uniform, the product dryness is also uniform, and the product quality is ensured.

[0019] 2. When the flow control plug and the hopper form a gap, the raw materials start to fall, the raw materials fall on the chain plate through the blanking frame below the hopper, and the chain plate is not deformed, so that the chain plate can safely run in the furnace.

[0020] 3. The raw materials cannot splash to the end of the chain plate and fall to the bottom of the furnace, so that cleaning is not needed, the production is improved, and the labor intensity of the employees is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to make the technical scheme of the embodiments of the present application clearer, the drawings used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and other related drawings can be obtained by those skilled in the art without creative effort on the basis of the drawings.

[0022] Figure 1 is a structural schematic view of the feeding hopper of the infrared drying furnace with flow control device.

[0023] Figure 2 is Figure 1 a top view.

[0024] Figure 3 is a schematic view of the flow control plug.

[0025] Figure 4 is a schematic view of the flow control plug.

[0026] The marks in the drawings are as follows: 1. hopper 101. lifting lug 2. flow control plug 201. square tube 202. nut 203. screw rod 3. discharging frame 4. flange 5. adjusting plate 501. level block 502. handle 6. fixed support. DETAILED DESCRIPTION

[0027] In order to make the technical scheme of the embodiments of the present application clearer, the drawings used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and other related drawings can be obtained by those skilled in the art without creative effort on the basis of the drawings.

[0028] It should be noted that: similar labels and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it can not be further defined and explained in subsequent drawings.

[0029] Embodiment:

[0030] As Figures 1-4As shown, a kind of infrared drying furnace belt flow control device's feed hopper.It includes hopper 1, flow control plug 2, blanking frame 3, the hopper 1 is the V-shaped hopper 1 with rectangular opening, V-shaped hopper 1 can realize good blanking effect, make it gather to bottom, be provided with two square tubes 201 in hopper 1, the middle part of each square tube 201 is installed through screw rod 203 by nut 202, the lower end of screw rod 203 suspends flow control plug 2, adjust nut 202 to realize the position of flow control plug 2 high, low adjustment, to adjust the clearance between flow control plug 2 and hopper 1 to realize the speed control of blanking, flow control plug 2 is located in blanking port of hopper 1 (i.e. the outlet position of bottom), flow control plug 2 can move up and down in blanking port, that is, there is small gap with wall surface, the lower part of hopper 1 is connected blanking frame 3 as the passageway of raw material in hopper 1 to chain plate, on the face of blanking frame 3 perpendicular to the direction of chain plate movement, be equipped with adjusting plate 5 for adjusting the thickness of material layer, and the lower part of adjusting plate 5 is flush.

[0031] The lower end of the hopper 1 and the upper end of the blanking frame 3 are provided with H-shaped flanges 4, the lower end of the hopper 1 and the upper end of the blanking frame 3 are located in the square frame in the middle of the H-shaped flange 4, the hopper 1 and the blanking frame 3 are installed together by the flange 4, the flange 4 is installed at both ends of the rack, and the flange 4 plays a role in structure strengthening and installation connection, and installs the entire blanking hopper 1 on the rack.

[0032] The upper part of the adjusting plate 5 is provided with equal height blocks 501, the equal height blocks 501 are installed on the fixed bracket 6 with a waist-type slot by bolts, the fixed bracket 6 is arranged on the flange 4, the height is adjusted by using the waist-type slot in the upward and downward direction, and in order to facilitate the height of the adjusting plate 5, a handle 502 is arranged between the two equal height blocks 501 of the adjusting plate 5, and in order to fix the adjusting plate 5, the number of fixed brackets 6 is two, the length of the waist-type slot can be set according to requirements, and the position of the equal height block 501 needs to be designed as required and matched with the position of the waist-type slot.

[0033] The width of the adjusting plate 5 is greater than the width of the chain plate, so as to realize the scraping of the thickness of the raw material, and the blanking frame 3 forms an extension structure corresponding to the two sides of the adjusting plate 5 to limit the adjusting plate 5, so that the adjusting plate 5 has sufficient support when contacting the raw material.

[0034] The flow control plug 2 is formed by splicing the upper part of the right prism and the lower part of the inverted right prism, the two right prisms are connected at the bottom, the overall structure of the flow control plug 2 is that the upper part and the lower part are both inclined surfaces, the edge realizes the speed control of blanking, and the structure makes the blanking smooth and does not cause blockage.

[0035] The angles of the two ends of the square tube 201 are consistent with the angles of the two side walls of the hopper 1, and the square tube 201 is spot-welded on the inner wall of the hopper 1, so that the square tube 201 is stably installed, and the number of square tubes 201 can be increased when necessary.

[0036] The inside material of the hopper 1 is a 4mm-thick 304 stainless steel plate, and the outside is a 10mm-thick Q235 carbon steel plate, which is made by welding, the inside size of the bottom of the hopper 1 is completely consistent with the size of the blanking frame 3 below, and the size of the hopper 1 is set according to the requirement, and when the flow is large, the space of the hopper 1 should be increased.

[0037] Two opposite lifting lugs 101 are arranged at the upper end of the hopper 1, and the lifting lugs 101 facilitate hoisting and maintenance of the hopper 1.

[0038] The screw rod 203 is welded at the lower end of the flow control plug 2, the square tube 201 and the flow control plug 2 are made of 304 stainless steel material, so as to ensure hardness and prevent rust.

[0039] The middle part of the square tube 201 is provided with a hole for passing through the screw rod 203, and the diameter of the screw rod 203 is smaller than that of the hole of the square tube 201, so as to facilitate movement of the screw rod 203 and avoid being stuck.

[0040] Working principle: when the raw materials are loaded into the hopper, the raw materials will not directly fall onto the chain plate, and two nuts on the hopper are needed to lift the flow control plug, when a gap is generated between the flow control plug and the hopper, the raw materials begin to fall, and the raw materials fall onto the chain plate through the blanking frame below the hopper. The higher the flow control plug is lifted, the faster the blanking speed is. In addition, a layer thickness adjusting plate is arranged on one surface of the blanking frame, and the required layer thickness can be adjusted according to the production process. The higher the position of the adjusting plate from the chain plate, the thicker the layer is. When the chain plate moves towards the furnace, the adjusting plate scrapes on the raw materials, and the raw materials below the adjusting plate move together with the chain plate and enter the furnace for drying. When the height of the adjusting plate is a fixed value, the thickness of the layer is uniform, the dryness of the product is also uniform, and the drying quality of the product is ensured.

[0041] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0042] In the utility model, unless another definite provision and limitation, the term "mount", "link", "connect", "fix" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection;Can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relation. For ordinary skilled person in the art, can understand the specific meaning of above-mentioned term in the utility model according to specific circumstances.

[0043] The above is only the preferred embodiment of the utility model, it should be pointed out that the above preferred embodiment should not be regarded as the limitation of the utility model, the protection scope of the utility model should be limited by the range defined in claim. For ordinary skilled person in the art, still can make a number of improvements and refinements without departing from the spirit and scope of the utility model, these improvements and refinements also should be regarded as the protection scope of the utility model.

Claims

1. An infrared drying furnace belt flow control device's feed hopper, characterized by, It includes hopper, flow control plug, blanking frame, the hopper is the V-shaped hopper with rectangular opening, two square tubes are arranged in the hopper, a threaded rod is installed through the middle of each square tube by a nut, the lower end of the threaded rod is hoisted to the flow control plug, the position of the flow control plug is adjusted by adjusting the nut, the flow control plug is located in the blanking port of the hopper, the lower part of the hopper is connected to the blanking frame, as a channel for the raw materials in the hopper to the chain plate, an adjusting plate for adjusting the thickness of the material layer is arranged on a surface of the blanking frame perpendicular to the movement direction of the chain plate.

2. The feed hopper of an infrared drying oven belt flow control device according to claim 1, characterized in that, The lower end of the hopper and the upper end of the blanking frame are provided with H-shaped flanges, the lower end of the hopper and the upper end of the blanking frame are located in the square frame in the middle of the H-shaped flanges, the hopper and the blanking frame are installed together by the flanges, and the two ends of the flanges are installed on the rack.

3. The feed hopper of an infrared drying oven belt flow control device according to claim 2, characterized in that, The upper part of the adjusting plate is provided with an equal-height block, the equal-height block is installed on a fixed support with a waist-shaped groove by bolts, and the fixed support is arranged on the flange.

4. The feed hopper of an infrared drying oven belt flow control device according to claim 3, characterized in that, The width of the adjusting plate is greater than the width of the chain plate, and the blanking frame forms an extension structure corresponding to the two sides of the adjusting plate to limit the adjusting plate.

5. The feed hopper of an infrared drying oven belt flow control apparatus according to claim 1, wherein The flow control plug is formed by splicing the upper part of a right prism and the lower part of an inverted right prism, and the two right prisms are connected.

6. The feed hopper of an infrared drying oven belt flow control apparatus according to claim 1, characterized in that, The angles of the two ends of the square tube are consistent with the angles of the two side walls of the hopper, and the square tube is spot-welded on the inner wall of the hopper.

7. The feed hopper of an infrared drying oven belt flow control apparatus according to claim 1, characterized in that, The inner side of the hopper is made of 4mm-thick 304 stainless steel plate, and the outer side is made of 10mm-thick Q235 carbon steel plate, and the hopper is made by welding, and the inner space size of the bottom of the hopper is completely consistent with the size of the blanking frame below.

8. The feed hopper of an infrared drying oven belt flow control apparatus according to claim 1, characterized in that, Two opposite lifting lugs are arranged on the upper end of the hopper.

9. The feed hopper of an infrared drying oven belt flow control apparatus according to claim 1, characterized in that, The lower end of the threaded rod is welded on the flow control plug, and the square tube, the threaded rod and the flow control plug are made of 304 stainless steel.

10. The feed hopper of an infrared drying oven belt flow control apparatus according to claim 1, characterized in that, The middle part of the square tube is provided with an opening for passing through the threaded rod, and the diameter of the threaded rod is smaller than the diameter of the opening of the square tube.

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