Feeding device of biomass steam boiler

Abstract

The utility model discloses a feeding device of a biomass steam boiler, which relates to the technical field of steam boilers and comprises a crushing box, a first driving motor is mounted at one end of the crushing box, the output end of the first driving motor extends into the crushing box and is fixedly connected with a first crushing roller, and second crushing rollers are symmetrically and rotatably connected into the crushing box. Moving blocks are symmetrically arranged at one end of the crushing box, second driving motors are mounted at the other ends of the moving blocks, the output ends of the second driving motors are fixedly connected with the second crushing rollers, and an adjusting assembly is mounted at one end of the crushing box. By adopting the structure, fuel can be crushed into uniform granularity by adjusting the space between the crushing rollers, the combustion efficiency of the fuel can be improved, the fuel with uniform granularity can be combusted more fully in the boiler, unburnt ash is reduced, the utilization rate of the fuel is improved, and the combustion efficiency of the fuel is improved by adjusting the space between the crushing rollers. And aggravation of equipment abrasion caused by too large or too small fuel granularity can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of steam boiler, especially relates to a biomass steam boiler's feeding device. BACKGROUND

[0002] The biomass steam boiler is a kind of equipment with biomass fuel as main energy, and it produces steam by heating water through burning biomass material.The biomass steam boiler is widely used in many industries, and it has significant environmental protection, energy saving and economic advantages.The working principle of the biomass steam boiler is to burn biomass particles, and then produce heat energy, and the heat energy is converted into energy to transfer heat to water in the boiler to make the water temperature rise, and finally the hot water is vaporized to produce steam.The feeding device of the biomass steam boiler is an important part of the boiler system, and its main function is to continuously and stably feed biomass fuel into the boiler furnace to ensure the continuous combustion of the boiler.

[0003] The biomass steam boiler feeding device with publication number "CN217978869U" includes a biomass steam boiler body, a fully combusting feeding mechanism for screening feeding is arranged on the side of the biomass steam boiler body, the fully combusting feeding mechanism includes a feeding assembly, a screening assembly and a crushing assembly;The feeding assembly includes a top feeding bin arranged on the side of the biomass steam boiler body.The biomass steam boiler body is provided with a fully combusting feeding mechanism, and the screening assembly inside the fully combusting feeding mechanism can screen the large particle fuel entering the inside of the feeding assembly, so that the raw material particles entering the inside of the biomass steam boiler body are all small particles that are easy to burn, and the small particles can burn more fully in the inside of the biomass steam boiler body, and the burning efficiency of the raw material is improved.

[0004] Although the above-mentioned utility model makes the raw material particles entering the inside of the biomass steam boiler body all small particles that are easy to burn, and the small particles can burn more fully in the inside of the biomass steam boiler body, and the burning efficiency of the raw material is improved, but the crushing blade spacing cannot adapt to all types of fuel.For larger or harder fuel, too small spacing may cause blade wear or blockage;For smaller or softer fuel, too large spacing may not be able to fully break, affecting the burning efficiency of the fuel, and insufficient fuel crushing will result in more large particle fuel in the burning process, which will not burn fully in the boiler, and is easy to produce unburned ash, reducing the burning efficiency. UTILITY MODEL CONTENTS

[0005] In view of the problems mentioned in the background art, the purpose of the utility model is to provide a biomass steam boiler's feeding device to solve the problem that the spacing between the crushing blades cannot adapt to all types of fuel, and for larger or harder fuel, the too small spacing may cause the blades to wear out or be blocked, and for smaller or softer fuel, the too large spacing may not be able to fully break up the fuel, affecting the combustion efficiency of the fuel.

[0006] The above technical purpose of the utility model is realized by the following technical scheme:

[0007] A biomass steam boiler's feeding device, comprising a crushing box, the bottom end of the crushing box is fixedly connected with a feeding bin, the bottom end of the feeding bin is fixedly connected with a feeding pipeline, one end of the crushing box is provided with a first driving motor, the output end of the first driving motor extends into the crushing box and is fixedly connected with a first crushing roller, the crushing box is symmetrically connected with a second crushing roller, one end of the crushing box is symmetrically provided with a moving block, the other end of the moving block is provided with a second driving motor, the output end of the second driving motor extends into the crushing box through the moving block and is fixedly connected with the second crushing roller, and the crushing box is provided with an adjusting assembly at one end;

[0008] The adjusting assembly comprises a fixed seat, a third driving motor, a first lead screw, a connecting column, a second lead screw and a guide rod, the crushing box is symmetrically fixedly connected with the fixed seat at one end, the fixed seat is provided with the third driving motor at one end, the output end of the third driving motor penetrates the fixed seat and is fixedly connected with the first lead screw, the other end of the first lead screw is fixedly connected with the connecting column, the other end of the connecting column is fixedly connected with the second lead screw, and the opposite end of the fixed seat is fixedly connected with the guide rod, the first lead screw, the second lead screw and the guide rod are sleeved outside the moving block, the first lead screw is threadedly connected with the moving block, the second lead screw is threadedly connected with the moving block, and the guide rod is slidably connected with the moving block, the spacing between the crushing rollers can be adjusted to ensure that the fuel is broken into uniform particle size, which helps to improve the combustion efficiency of the fuel, the fuel with uniform particle size is more fully combusted in the boiler, the unburned ash is reduced, the utilization rate of the fuel is improved, and the adjustment of the spacing between the crushing rollers can avoid the aggravation of equipment wear caused by the fuel particle size being too large or too small.

[0009] As a preferred technical scheme, the second crushing roller is rotatably connected with a guide block at the end away from the second driving motor, the crushing box is symmetrically provided with a guide groove at one end inside, the guide block is slidably connected with the guide groove, the crushing box is symmetrically provided with a through groove at one end, the through groove is communicated with the inside of the crushing box, the output shaft of the second driving motor is slidably connected with the through groove, and the sliding cooperation between the guide block and the guide groove plays a good guiding role in the movement of the crushing roller, ensures that the crushing roller can move along the predetermined track during the movement process, avoids deviation and shaking, and thus improves the stability of the equipment operation.

[0010] As a preferred technical scheme, the drying box is movably connected to one end of the crushing box, an installation plate is fixedly connected to the outer side wall of the drying box, and the installation plate is threadedly connected to the crushing box, so that the excess moisture in the fuel can be removed, the water content of the fuel is reduced, the fuel is more loose and easy to burn, and the burning speed and stability of the fuel are improved.

[0011] As a preferred technical scheme, the filter box is slidably connected to the inside of the crushing box, and a screen is fixedly connected to the bottom end of the filter box.

[0012] As a preferred technical scheme, the fixed ring is fixedly connected to the outer side wall of the crushing box, support legs are symmetrically fixedly connected to the bottom end of the fixed ring near the chamfer, support seats are fixedly connected to the bottom end of the support legs, and anti-skid pads are fixedly connected to the bottom end of the support seats, so that the crushing box is provided with additional support, and the structural stability of the whole device is enhanced.

[0013] In summary, the utility model mainly has the following beneficial effects:

[0014] In the utility model, the third driving motor is started, the first screw rod drives the connecting column and the second screw rod to rotate, the first screw rod and the second screw rod are respectively screwed with the moving block, so that the moving block drives the second driving motor and the second crushing roller to move, when the second crushing roller moves, the guide block slides in the guide groove, so that the distance between the first crushing roller and the second crushing roller is adjusted, the fuel can be crushed into uniform granularity by adjusting the distance between the crushing rollers, the burning efficiency of the fuel is improved, the fuel with uniform granularity is more fully burned in the boiler, the unburned ash is reduced, the utilization rate of the fuel is improved, and the distance between the crushing rollers is adjusted, so that the equipment wear is avoided due to the fuel with too large or too small granularity. DRAWINGS

[0015] Figure 1 is a three-dimensional structure schematic view of the utility model;

[0016] Figure 2 is another side three-dimensional structure schematic view of the utility model;

[0017] Figure 3 is an inverted three-dimensional structure schematic view of the utility model;

[0018] Figure 4 is a three-dimensional structure schematic view of the second crushing roller of the utility model.

[0019] : 1, pulverizing box; 2, feeding bin; 3, feeding pipeline; 4, fixed ring; 5, supporting leg; 6, supporting seat; 7, non-slip pad; 8, mounting plate; 9, drying box; 10, first driving motor; 11, first pulverizing roller; 12, second pulverizing roller; 13, guide groove; 14, guide block; 15, moving block; 16, second driving motor; 17, through groove; 18, adjusting assembly; 181, fixed seat; 182, third driving motor; 183, first screw rod; 184, connecting column; 185, second screw rod; 186, guide rod; 19, filtering box; 20, screen. DETAILED DESCRIPTION

[0020] EMBODIMENT

[0021] REFERENCE Figures 1 to 4 The biomass steam boiler feeding device comprises a pulverizing box 1, the bottom end of the pulverizing box 1 is fixedly connected with a feeding bin 2, the bottom end of the feeding bin 2 is fixedly connected with a feeding pipeline 3, one end of the pulverizing box 1 is provided with a first driving motor 10, the output end of the first driving motor 10 extends into the interior of the pulverizing box 1 and is fixedly connected with a first pulverizing roller 11, the interior of the pulverizing box 1 is symmetrically connected with a second pulverizing roller 12, one end of the pulverizing box 1 is symmetrically provided with a moving block 15, the other end of the moving block 15 is provided with a second driving motor 16, the output end of the second driving motor 16 extends into the interior of the pulverizing box 1 through the moving block 15 and is fixedly connected with the second pulverizing roller 12, and one end of the pulverizing box 1 is provided with an adjusting assembly 18.

[0022] The adjusting assembly 18 comprises a fixed seat 181, a third driving motor 182, a first screw rod 183, a connecting column 184, a second screw rod 185 and a guide rod 186, one end of the fixed seat 181 is fixedly connected with the pulverizing box 1, one end of the fixed seat 181 is provided with the third driving motor 182, the output end of the third driving motor 182 penetrates through the fixed seat 181 and is fixedly connected with the first screw rod 183, the other end of the first screw rod 183 is fixedly connected with the connecting column 184, the other end of the connecting column 184 is fixedly connected with the second screw rod 185, the opposite end of the fixed seat 181 is fixedly connected with the guide rod 186, the first screw rod 183, the second screw rod 185 and the guide rod 186 are sleeved outside the moving block 15, the first screw rod 183 is threadedly connected with the moving block 15, the second screw rod 185 is threadedly connected with the moving block 15, and the guide rod 186 is slidingly connected with the moving block 15, the third driving motor 182 is started, the connecting column 184 and the second screw rod 185 are driven to rotate by the first screw rod 183, the first screw rod 183 and the second screw rod 185 are respectively threadedly rotated with the moving block 15, thereby controlling the moving block 15 to drive the second driving motor 16 and the second pulverizing roller 12 to move, and when the moving block 15 drives the second pulverizing roller 12 to move, the moving block 15 simultaneously slides and is limited outside the guide rod 186.

[0023] Reference Figure 2 And Figure 4 , the second crushing roller 12 is rotatably connected with a guide block 14 away from one end of the second driving motor 16, and a guide groove 13 is symmetrically formed in one end of the crushing box 1, and the guide block 14 is slidably connected with the guide groove 13, when the moving block 15 drives the second driving motor 16 and the second crushing roller 12 to move, the second crushing roller 12 drives the guide block 14 to slide in the guide groove 13.

[0024] Reference Figure 3 , a through groove 17 is symmetrically formed in one end of the crushing box 1, the through groove 17 is in communication with the inside of the crushing box 1, and the output shaft of the second driving motor 16 is slidably connected with the through groove 17, when the moving block 15 drives the second driving motor 16 and the second crushing roller 12 to move, the output shaft of the second driving motor 16 slides in the through groove 17.

[0025] Reference Figure 1 , the drying box 9 is movably connected with one end of the crushing box 1, the mounting plate 8 is fixedly connected with the outer side wall of the drying box 9, and the mounting plate 8 is threadedly connected with the crushing box 1, the fuel is poured into the crushing box 1, and the fuel is crushed by the first crushing roller 11 and the second crushing roller 12, the crushed fuel falls, and the drying box 9 dries the fuel during the falling process.

[0026] Reference Figure 2 , the filter box 19 is slidably connected in the crushing box 1, and the filter box 19 is fixedly connected with the screen 20 at the bottom end, the fuel is poured into the crushing box 1, and the fuel is crushed by the first crushing roller 11 and the second crushing roller 12, the crushed fuel falls into the filter box 19, and is screened by the screen 20.

[0027] Reference Figure 1 , the fixed ring 4 is fixedly connected with the outer side wall of the crushing box 1, the support legs 5 are symmetrically fixedly connected with the fixed ring 4 near the chamfered portion at the bottom end, the support legs 5 are fixedly connected with the support seat 6 at the bottom end, and the anti-skid pad 7 is fixedly connected with the support seat 6 at the bottom end, the fixed ring 4 and the support legs 5 provide additional support for the crushing box 1, and enhance the structural stability of the whole device.

[0028] Use principle and advantage: first, start third drive motor 182, control first screw rod 183 drive connecting column 184 and second screw rod 185 rotation, first screw rod 183 and second screw rod 185 respectively with moving block 15 carry out screw rotation, moving block 15 drive second drive motor 16 and second crushing roller 12 move, second crushing roller 12 move, drive guide block 14 in guide groove 13 inside sliding, thereby adjust the interval between first crushing roller 11 and second crushing roller 12, adjust to the appropriate interval, fuel is poured into the crushing box 1 inside, through first crushing roller 11 and second crushing roller 12 are crushed, the fuel after crushing falls, in the process of falling, drying box 9 is dried to fuel, after drying, fuel falls into filter box 19 inside, is screened through screen 20, after screening, is sent into biomass steam boiler inside through feeding pipe 3;

[0029] The utility model discloses through adjusting the crushing roller interval can ensure that fuel is broken into even granularity, help to improve the combustion efficiency of fuel, and the fuel of even granularity is more fully combusted in the boiler, reduces the unburnt ash, improves the utilization of fuel, and adjusting the crushing roller interval can avoid the equipment wear and tear intensification caused by fuel granularity too big or too small.

Claims

1. A biomass steam boiler feeding device comprising a pulverizing box, characterized in that: The bottom end of the crushing box is fixedly connected with a feeding bin, the bottom end of the feeding bin is fixedly connected with a feeding pipeline, one end of the crushing box is provided with a first driving motor, the output end of the first driving motor extends to the inside of the crushing box and is fixedly connected with a first crushing roller, the inside of the crushing box is symmetrically connected with a second crushing roller, one end of the crushing box is symmetrically provided with a moving block, the other end of the moving block is provided with a second driving motor, the output end of the second driving motor extends to the inside of the crushing box through the moving block and is fixedly connected with the second crushing roller, and one end of the crushing box is provided with an adjusting assembly. The adjusting assembly comprises a fixed seat, a third driving motor, a first lead screw, a connecting column, a second lead screw and a guide rod, one end of the crushing box is symmetrically fixedly connected with the fixed seat, one end of the fixed seat is provided with the third driving motor, the output end of the third driving motor penetrates through the fixed seat and is fixedly connected with the first lead screw, the other end of the first lead screw is fixedly connected with the connecting column, the other end of the connecting column is fixedly connected with the second lead screw, and the opposite end of the fixed seat is fixedly connected with the guide rod.

2. A biomass steam boiler feeding device according to claim 1, characterized in that: The first lead screw, the second lead screw and the guide rod are sleeved outside the moving block, the first lead screw is threadedly connected with the moving block, the second lead screw is threadedly connected with the moving block, and the guide rod is slidably connected with the moving block.

3. A biomass steam boiler feeding device according to claim 1, characterized in that: The second crushing roller is rotatably connected with a guide block at the end away from the second driving motor, the inside of the crushing box is symmetrically provided with a guide groove at one end, and the guide block is slidably connected with the guide groove.

4. A biomass steam boiler feeding device according to claim 1, characterized in that: One end of the crushing box is symmetrically provided with a through groove, the through groove is communicated with the inside of the crushing box, and the output shaft of the second driving motor is slidably connected with the through groove.

5. A biomass steam boiler feeding device according to claim 1, characterized in that: One end of the crushing box is movably connected with a drying box, the outer side wall of the drying box is fixedly connected with a mounting plate, and the mounting plate is threadedly connected with the crushing box.

6. A biomass steam boiler feeding device according to claim 1, characterized in that: The inside of the crushing box is slidably connected with a filter box, and the bottom end of the filter box is fixedly connected with a screen.

7. A biomass steam boiler feeding device according to claim 1, characterized in that: The outer side wall of the crushing box is fixedly connected with a fixed ring, the bottom end of the fixed ring is symmetrically fixedly connected with supporting legs near the chamfer, the bottom end of the supporting legs is fixedly connected with a supporting seat, and the bottom end of the supporting seat is fixedly connected with an antiskid pad.

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