Feeding anti-blocking device of biomass gasifier

Abstract

The utility model belongs to the technical field of biomass gasification furnaces, and particularly discloses a biomass gasification furnace feeding anti-blocking device which comprises a feeding hopper, a material blocking assembly, a smashing assembly and a material scraping assembly, the material blocking assembly, the smashing assembly and the material scraping assembly are installed in the feeding hopper, and the material blocking assembly comprises two baffles hinged to the upper portion of the feeding hopper. The middle parts of the two baffles are butted to seal the upper part of the feeding hopper; the crushing assembly comprises two crushing rollers which rotate relatively, the rotating axes of the crushing rollers are parallel to the hinge axes of the baffles, and the free ends of the two baffles are located above the middles of the two crushing rollers; the scraping assembly comprises a scraping plate arranged on the side wall of the feeding hopper, the free end of the scraping plate inclines upwards and abuts against the side wall of the smashing roller, the scraping plate comprises a fixed part fixed to the side wall of the feeding hopper and a sliding part slidably connected to the fixed part, and a spring is connected between the sliding part and the side wall of the feeding hopper. By means of the scheme, the problem that in the prior art, the feeding anti-blocking effect is not ideal can be solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of biomass gasification furnace, concretely relates to biomass gasification furnace feeding anti -blocking device. BACKGROUND

[0002] Biomass gasification furnace is the gasification furnace of straw gas (green new energy) manufacture, raw material is generally crop straw, forest waste, edible fungus slag, cattle and sheep manure and all combustible material, the straw gas made belongs to green new energy, has strong vitality, is a kind of inexhaustible renewable resource.

[0003] In prior art, biomass gasification furnace is usually directly dropped into the raw material in the feeding hopper when feeding, due to the existence of straw, forest waste and the like with larger size, it is easy to be blocked in the feeding port in somewhere, for this, patent CN202220491920.8 discloses a kind of biomass gasification furnace feeding anti -blocking device, by setting rotating rod in feeding pipe and driving extruding rod rotation, material is pulverized, and material on the inner wall of feeding pipe is cleaned by the up and down sliding of sliding ring.

[0004] The above technical scheme still has the following problems: the sliding ring is arranged above the rotating rod, and the material is easy to accumulate on the upper surface of the sliding ring, especially the spring arranged on the sliding ring, if the material enters the spring, it will hinder the movement of the spring or even block in the spring, resulting in that the feeding is still blocked, and the anti-blocking effect is not ideal. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model provides a biomass gasification furnace feeding anti-blocking device to solve the problem of unsatisfactory feeding anti-blocking effect in the prior art.

[0006] According to the embodiments of the utility model, the following technical scheme is adopted:

[0007] The biomass gasification furnace feeding anti-blocking device includes a feeding hopper, a material blocking assembly, a crushing assembly and a material scraping assembly installed in the feeding hopper, the material blocking assembly includes two flaps hinged to the upper part of the feeding hopper, and the middle parts of the two flaps are butted to close the upper part of the feeding hopper; the crushing assembly includes two crushing rollers rotating relative to each other, the rotating axis of the crushing roller is parallel to the hinging axis of the flap, and the free end of the two flaps is above the middle part of the two crushing rollers; the material scraping assembly includes a scraping plate arranged on the side wall of the feeding hopper, the free end of the scraping plate is inclined upward and abuts against the side wall of the crushing roller, the scraping plate includes a fixed part fixed to the side wall of the feeding hopper and a sliding part slidingly connected to the fixed part, and a spring is connected between the sliding part and the side wall of the feeding hopper.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] By the deflection of the baffle, the amount of feed is controlled, and a large amount of material is prevented from accumulating at the crushing roller to affect the crushing of the crushing roller.

[0010] By the crushing of the crushing roller on the material, the size of the material is reduced, and the possibility of blockage of the material due to the large size is reduced.

[0011] By the scraping of the material remaining on the crushing roller by the scraping plate, the material accumulated on the crushing roller is prevented from affecting the crushing effect or causing the rotation of the crushing roller to be stuck. The scraping plate is provided to be retractable, so that the free end of the scraping plate can abut against the side wall of the crushing roller and will not be hindered by the crushing teeth on the crushing roller.

[0012] In summary, in the present application, by the design of the material blocking assembly, the crushing assembly and the material scraping assembly, the amount of material entering the feed hopper and the size of the material are controlled, and the possibility of blockage of the material in the feed hopper is reduced.

[0013] Further, the free end of the baffle is hingedly connected with a telescopic rod.

[0014] Further, the upper surface of the baffle is provided with a plurality of protrusions.

[0015] Further, a ventilation pipe is installed on the inner wall of the feed hopper, the ventilation pipe is located below the scraping plate, and the opening of the ventilation pipe faces the free end of the scraping plate.

[0016] Further, a mounting hole for installing the ventilation pipe is formed in the side wall of the feed hopper, the ventilation pipe comprises a soft pipe portion and a hard pipe portion, the soft pipe portion is inserted into the mounting hole, a mounting block is hingedly connected to the inner wall of the feed hopper, and the hard pipe portion is connected to the mounting block.

[0017] Further, a filter screen is installed on the opening of the ventilation pipe.

[0018] Further, a rotating shaft is rotatably connected to the inner wall of the feed hopper, a plurality of stirring blades are arranged on the rotating shaft along the axial direction of the rotating shaft, the rotating shaft is located above the baffle, and the axis of the rotating shaft and the hinge axis of the baffle are perpendicular to each other. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application.

[0020] Figure 2 It is Figure 1 It is an enlarged view of part A.

[0021] In the drawings: 1, feed hopper; 2, rotating shaft; 3, stirring blade; 4, baffle; 5, protrusion; 6, telescopic rod; 7, crushing roller; 8, sliding portion; 9, fixed portion; 10, scraping plate; 11, wedge surface; 12, filter screen; 13, hard pipe portion; 14, soft pipe portion; 15, ventilation pipe; 16, mounting block. DETAILED DESCRIPTION

[0022] The utility model will be further explained in detail below in combination with the drawings of the specification and give specific implementation.

[0023] As Figure 1 , Figure 2 shown, biomass gasification furnace feed anti-blocking device, including feed hopper 1 and installing in feed hopper 1's baffle assembly, crushing assembly and scraping assembly.

[0024] Baffle assembly includes two hinged in the upper portion of feed hopper 1's baffle 4, two baffle 4 middle portion butt joint is used for closing the upper portion of feed hopper 1, and the free end of baffle 4 is arc-shaped to avoid interference when two baffle 4 deflects.The lower portion of the free end of baffle 4 and the inner wall of feed hopper 1 are hinged with telescopic rod 6, specifically, telescopic rod 6 can select the electric telescopic rod in prior art, one end of telescopic rod 6 is hinged in the lower portion of the free end of baffle 4, the other end of telescopic rod 6 is hinged in the inner wall of feed hopper 1, and telescopic rod 6 is located below baffle 4, and the deflection of baffle 4 can be driven by the extension and contraction of telescopic rod 6.When the free end of baffle 4 deflects downward, the gap between the two baffle 4 appears, and the free end of baffle 4 is in the state of inclined downward, and the material on baffle 4 falls from the gap between the two baffle 4 along the inclined surface of baffle 4.And with the reset of telescopic rod 6, the material cannot continue to fall after the reset of the deflection of baffle 4, so that the amount of falling material can be controlled.

[0025] Crushing assembly includes two opposite rotating crushing rollers 7, and the crushing rollers 7 are rotatably connected to the inner wall of the feed hopper 1.The rotation axis of the crushing rollers 7 is parallel to the hinge axis of the baffle 4, and the free end of the two baffle 4 is located above the middle portion of the two crushing rollers 7, so that the material falling from the gap between the two baffle 4 can directly fall between the two crushing rollers 7 and be crushed with the rotation of the two crushing rollers 7.In the actual design process, the end of the crushing roller 7 penetrates and extends out of the feed hopper 1, and a motor for driving the rotation of the crushing roller 7 is installed on the outer wall of the feed hopper 1, and the two crushing rollers 7 are driven by gear transmission, for example, as shown in the direction in the middle, the left crushing roller 7 rotates clockwise, and the right crushing roller 7 rotates counterclockwise, so that the two crushing rollers 7 can be engaged in the middle portion. Figure 1

[0026] ​The scraping assembly comprises a scraping plate 10 arranged on the side wall of the feeding hopper 1, and the free end of the scraping plate 10 is inclined upward and abuts against the side wall of the crushing roller 7; in the embodiment, the scraping plate 10 comprises a fixed part 9 fixed on the side wall of the feeding hopper 1 and a sliding part 8 slidably connected to the fixed part 9; a spring (not shown in the figure) is arranged between the sliding part 8 and the side wall of the feeding hopper 1; the length of the scraping plate 10 is designed to be telescopic through the fixed part 9 and the sliding part 8, so that the free end of the scraping plate 10 can abut against the side wall of the crushing roller 7 and will not be hindered by the crushing teeth on the crushing roller 7; in order to facilitate the crushing teeth on the crushing roller 7 to pass through the scraping plate 10, the free end of the scraping plate 10 is provided with a downward wedge surface 11 (see Fig. 6). Figure 2

[0027] In specific use, the material is poured into the opening at the upper end of the feeding hopper 1, and the material falls on the baffle 4; in the initial state, the free ends of the two baffles 4 abut against each other to close the upper part of the feeding hopper 1, and the material cannot fall; the baffles 4 are deflected by the telescopic rod 6 at a certain time, so that the free ends of the baffles 4 are deflected downward, and the material can fall between the two crushing rollers 7 below for crushing; the amount of feeding is controlled through the deflection of the baffles 4, so as to avoid that a large amount of material is accumulated at the crushing rollers 7 to affect the crushing of the crushing rollers 7; the size of the crushed material is reduced, and the possibility of blockage of the material due to a large size is further reduced; and the material remaining on the crushing roller 7 is scraped off by the scraping plate 10 during the rotation of the crushing roller 7.

[0028] In another embodiment of the utility model, in order to slow down the falling speed of the material on the baffle 4, a plurality of protrusions 5 are arranged on the upper surface of the baffle 4; the material is hindered by the protrusions 5 to slow down the sliding speed, and a large amount of material is avoided from being directly accumulated between the crushing rollers 7 to a certain extent; after the material remaining on the baffle 4 is less, the baffle 4 is continuously swung by continuously telescoping the telescopic rod 6 for multiple times, so that the material remaining on the baffle 4 is shaken down, and the material remaining on the baffle 4 is avoided due to the hindrance of the baffle block.

[0029] In another embodiment of the utility model, in order to facilitate the material to be scraped off by the scraping plate 10 and avoid the material from adhering to the scraping plate 10, a ventilation pipe 15 is arranged on the inner wall of the feeding hopper 1 in the embodiment; the ventilation pipe 15 is located below the scraping plate 10, the opening of the ventilation pipe 15 faces the free end of the scraping plate 10, the ventilation pipe 15 is connected to a fan, the material adhering to the scraping plate 10 is blown off by the air blown by the fan, and the material is scraped off by the scraping plate 10; in order to avoid that the material falls into the ventilation pipe 15 to cause the ventilation pipe 15 to be blocked, a filter screen 12 is arranged on the opening of the ventilation pipe 15.

[0030] ​In actual design process, in order to facilitate the adjustment of the orientation of the ventilation pipe 15, so that the range of gas blowing is larger, the side wall of the feeding hopper 1 is provided with a mounting hole for mounting the pipe of the ventilation pipe 15, the ventilation pipe 15 comprises a hose part 14 and a hard pipe part 13, the hose part 14 is inserted into the mounting hole, the inner wall of the feeding hopper 1 is hingedly connected with a mounting block 16, the hard pipe part 13 is connected to the mounting block 16, the opening orientation of the hard pipe part 13 can be adjusted by rotating the mounting block 16, the hose part 14 can be made of rubber bellows, so as to stretch and contract to adapt when the hard pipe part 13 swings. A motor or a motor is mounted on the inner wall of the feeding hopper 1 for driving the mounting block 16 to rotate.

[0031] In another embodiment of the present application, the inner wall of the feeding hopper 1 is rotatably connected with a rotating shaft 2, a plurality of stirring blades 3 are arranged on the rotating shaft 2 along the axial direction of the rotating shaft 2, the rotating shaft 2 is located above the baffle 4, the axis of the rotating shaft 2 and the hinge axis of the baffle 4 are perpendicular to each other, the end of the rotating shaft 2 penetrates and extends out of the feeding hopper 1, and a motor for driving the rotating shaft 2 to rotate is mounted on the outer wall of the feeding hopper 1. By rotating the rotating shaft 2, the material on the baffle 4 is broken up, so that the material is not too large in size to pass between the two baffles 4.

[0032] It should be noted that in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and all modifications or replacements should be covered in the scope of the claims of the present application.

Claims

1. A biomass gasifier feed anti-blocking device, characterized in that: The device comprises a feeding hopper and a blocking assembly, a crushing assembly and a scraping assembly installed in the feeding hopper.

2. The biomass gasification furnace feed anti-blocking device according to claim 1, characterized in that: The free end of the blocking plate is hingedly connected with an extension rod between the lower part of the free end and the inner wall of the feeding hopper.

3. The biomass gasification furnace feed anti-blocking device according to claim 1, characterized in that: The upper surface of the blocking plate is provided with a plurality of protrusions.

4. The biomass gasification furnace feed anti-blocking device according to claim 1, characterized in that: The inner wall of the feeding hopper is provided with a ventilation pipe, which is located below the scraping plate, and the opening of the ventilation pipe faces the free end of the scraping plate.

5. The biomass gasification furnace feed anti-blocking device according to claim 4, characterized in that: The side wall of the feeding hopper is provided with a mounting hole for the ventilation pipe, and the ventilation pipe comprises a soft pipe part and a hard pipe part.

6. The biomass gasification furnace feed anti-blocking device according to claim 4, characterized in that: The opening of the ventilation pipe is provided with a filter screen.

7. The biomass gasification furnace feed anti-blocking device according to claim 1, characterized in that: The inner wall of the feeding hopper is rotatably connected with a rotating shaft, and a plurality of stirring blades are arranged on the rotating shaft along the axial direction of the rotating shaft. The rotating shaft is located above the blocking plate, and the axis of the rotating shaft and the hinge axis of the blocking plate are perpendicular to each other.

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