CN219915256U

CN219915256U - Quick ash content survey device of coal

Info

Publication number: CN219915256U
Application number: CN202320975547.8U
Authority: CN
Inventors: 冯均利; 冯智劼; 刘佳; 吴景武
Original assignee: China National Accreditation Service For Conformity Assessment; Tianjin Customs Industrial Product Safety Technology Center; Shenzhen Customs Industrial Products Testing Technology Center
Current assignee: China National Accreditation Service For Conformity Assessment; Tianjin Customs Industrial Product Safety Technology Center; Shenzhen Customs Industrial Products Testing Technology Center
Priority date: 2023-04-21
Filing date: 2023-04-21
Publication date: 2023-10-27
Anticipated expiration: 2033-04-21

Abstract

The utility model discloses a rapid ash content measuring device for coal, and relates to the technical field of coal quality detection. Including tubular electric furnace body, tubular electric furnace body both sides fixed mounting has the support frame, the one end symmetry that tubular electric furnace body was kept away from to the support frame rotates and installs the driving roller, four driving rollers are through cup jointing the conveyer belt transmission, conveyer belt fixed surface installs the burning cavity, the inside subassembly that weighs that is provided with of burning cavity, the subassembly that weighs includes the box of weighing, box inner wall fixed mounting that weighs has spacing scale post, the heat insulating board has been cup jointed in the sliding of spacing scale post surface, heat insulating board top indent has the standing groove, the crucible has been pegged graft to the standing groove inner wall, heat insulating board bottom fixed mounting has the spring, the one end fixed mounting that the heat insulating board was kept away from to the spring is in the bottom of weighing box inner wall, make the device need not to take out the coal and can realize weighing around the burning, the effectual measurement accuracy that has improved the device, reduce the step of weighing simultaneously, the effectual measurement efficiency that has improved.

Description

Quick ash content survey device of coal

Technical Field

The utility model relates to the technical field of coal quality detection, in particular to a rapid ash content measuring device for coal.

Background

The ash content of coal refers to an impurity in the coal, after organic matters in the coal continuously react with oxygen in the exothermic process of the combustion reaction and are consumed, the residual residues which cannot react with the oxygen are harmful substances for the coal, the larger the ash content is, the lower the combustion efficiency of the coal is represented, meanwhile, the combustion temperature of the coal is reduced due to ash residues in the coal, and the larger part of the ash comes from inorganic matters contained in original plants forming the coal, so that the ratio of the ash in the coal is difficult to reduce by improving the exploitation technology or filtering the coal.

The coal with overhigh ash content has poor quality and is difficult to meet the combustion requirement of common coal, and pollution generated after combustion is also large, so that in order to ensure the quality of the coal and the cost performance of coal exploitation and judge whether the coal accords with the use standard when purchasing the coal, the ratio of ash content in the coal needs to be measured, and the common method is to carry out weighing measurement on the weight of the coal, then burn the coal through a device such as a muffle furnace for measuring the ash content of the coal, weigh the ash content after the combustion is finished, calculate the ratio of the coal to the ash content, and further judge whether the quality of the coal meets the standard.

However, the device for measuring ash content of coal in the market needs to put the coal into the device for burning, then take the ash content out of the device for weighing, and part of the coal may fall off or the ash content escapes in the air in the process of taking and putting for two times, so that the inaccuracy of the measurement result is caused, and meanwhile, the measurement efficiency is reduced.

Disclosure of Invention

The utility model aims to provide a rapid ash content measuring device for coal, which solves the technical problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a quick ash content survey device of coal, includes tubular electric stove body, tubular electric stove body both sides fixed mounting has the support frame, the support frame is kept away from the one end symmetry rotation of tubular electric stove body and is installed the driving roller, four the driving roller is through cup jointing the conveyer belt transmission, conveyer belt fixed surface installs the burning cavity, the inside subassembly that weighs that is provided with of burning cavity.

Preferably, the weighing assembly comprises a weighing box, a limit scale column is fixedly arranged on the inner wall of the weighing box, a heat insulation plate is sleeved on the surface of the limit scale column in a sliding manner, a placing groove is formed in the inner side of the top of the heat insulation plate in a concave manner, a crucible is inserted into the inner wall of the placing groove, a spring is fixedly arranged at the bottom of the heat insulation plate, and one end of the spring, far away from the heat insulation plate, is fixedly arranged at the bottom of the inner wall of the weighing box.

Preferably, one end part of the driving roller is fixedly provided with an output shaft of a motor, and the motor is fixedly arranged at the end part of the supporting frame.

Preferably, the combustion cavity slides in the combustion port of the tubular electric furnace body, and the horizontal distance between the side wall of the tubular electric furnace body and the driving roller is greater than the length of the combustion cavity.

Preferably, the conveyor belt is made of a high temperature resistant material.

Preferably, the weighing assemblies are equidistantly distributed inside the combustion chamber.

Compared with the related art, the rapid ash content measuring device for coal provided by the utility model has the following beneficial effects:

the utility model provides a coal rapid ash content measuring device, which is characterized in that coal to be measured is contained in a crucible, the crucible is inserted into the inner wall of a placing groove, the crucible and the weight of coal extrude a heat insulation plate to enable the heat insulation plate to slide in a weighing box, a spring is stressed and contracted in the process, the weight of the coal is obtained through scale display on the surface of a limit scale column according to the falling height of the heat insulation plate, the elasticity coefficient of the spring is combined, a motor is started to enable a driving roller to drive a conveying belt to rotate, and then a combustion cavity is driven to move towards a combustion port of a tubular electric furnace body, after the combustion port is plugged at two ends of the combustion cavity, the motor is closed to start the tubular electric furnace body for combustion, the motor is started again after the combustion is completed to enable the combustion cavity to move to the outer side of the tubular electric furnace body, and the scales on the surface of the limit scale column after the combustion of the coal are recorded again, so that the measurement can be completed.

The utility model provides a rapid ash content measuring device for coal, which adopts a plurality of weighing boxes which are equidistantly arranged in a combustion cavity, can measure a plurality of groups of coal at one time, takes an average value to reduce errors, and further improves the measuring precision of the device.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a combustion chamber structure according to the present utility model;

FIG. 3 is a schematic view of a heat shield structure of the present utility model;

fig. 4 is a cross-sectional view of the weighing cell structure of the present utility model.

In the figure: 1. the electric furnace comprises a tubular electric furnace body, 11, a supporting frame, 12, a conveyor belt, 13, a motor, 14, a driving roller, 15, a combustion cavity, 16, a weighing box, 17, a heat insulation board, 18, a limit scale column, 19, a placing groove, 2, a spring, 21 and a crucible.

Detailed Description

Embodiment one:

referring to fig. 1-4, the utility model provides a technical scheme, including a tubular electric furnace body 1, support frames 11 are fixedly installed on two sides of the tubular electric furnace body 1, one end of the support frames 11 far away from the tubular electric furnace body 1 is symmetrically and rotatably provided with driving rollers 14, four driving rollers 14 are driven by a sleeved conveyor belt 12, a combustion cavity 15 is fixedly installed on the surface of the conveyor belt 12, a weighing assembly is arranged in the combustion cavity 15, the weighing assembly comprises a weighing box 16, a limit scale column 18 is fixedly installed on the inner wall of the weighing box 16, a thermal insulation board 17 is sleeved on the surface of the limit scale column 18 in a sliding manner, a placing groove 19 is recessed in the top of the thermal insulation board 17, a crucible 21 is inserted into the inner wall of the placing groove 19, a spring 2 is fixedly installed at the bottom of the thermal insulation board 17, one end of the spring 2 far away from the thermal insulation board 17 is fixedly installed at the bottom of the inner wall of the weighing box 16, an output shaft of a motor 13 is fixedly installed at one driving roller 14 end, the motor 13 is fixedly installed at the end of the support frames 11, the combustion cavity 15 slides inside a combustion port of the tubular electric furnace body 1, the horizontal distance between the side wall of the tubular electric furnace body 1 and the driving rollers 14 is greater than the length of the combustion cavity 15, and the conveyor belt 12 is made of a high temperature resistant material.

In this embodiment: the coal to be measured is contained in the crucible 21, the crucible 21 is inserted into the inner wall of the placing groove 19, the heat insulation plate 17 is extruded by the weight of the crucible 21 and the coal to enable the crucible to slide in the weighing box 16, the spring 2 is stressed and contracted in the process, then the scale display on the surface of the limit scale column 18 is carried out according to the falling height of the heat insulation plate 17, the weight of the coal is obtained by combining the elasticity coefficient of the spring 2, then the motor 13 is started, the driving roller 14 drives the conveying belt 12 to rotate, the combustion cavity 15 is driven to move towards the combustion port of the tubular electric furnace body 1, after the combustion cavity 15 is plugged at the two ends, the motor 13 is closed to start the tubular electric furnace body 1 for combustion, the motor 13 is started again after the combustion is completed, the combustion cavity 15 is moved to the outer side of the tubular electric furnace body 1, the scale on the surface of the limit scale column 18 after the combustion of the coal is recorded again, the measurement can be completed, the device can realize the weighing before and after the combustion without taking the coal out, the phenomenon that the coal falls or the ash is scattered in the air is avoided, the measurement precision of the device is effectively improved, and the measurement steps are effectively reduced, and the measurement efficiency is effectively improved.

Embodiment two:

on the basis of the first embodiment, the utility model provides a technical scheme that: the weighing assemblies are equally distributed inside the combustion chamber 15.

In this embodiment: by adopting a plurality of weighing boxes 16 which are equidistantly arranged in the combustion cavity 15, multiple groups of coal can be measured at one time, the average value is taken, the error is reduced, and the measuring precision of the device is further improved.

Claims

1. The utility model provides a quick ash content survey device of coal, includes tubular electric stove body (1), its characterized in that: the novel electric furnace is characterized in that supporting frames (11) are fixedly arranged on two sides of the tubular electric furnace body (1), one end, far away from the tubular electric furnace body (1), of each supporting frame (11) is symmetrically and rotatably provided with driving rollers (14), four driving rollers (14) are in transmission through a sleeved conveying belt (12), a combustion cavity (15) is fixedly arranged on the surface of the conveying belt (12), and a weighing assembly is arranged inside the combustion cavity (15).

2. The rapid ash content measuring device for coal according to claim 1, wherein: the weighing assembly comprises a weighing box (16), a limit scale column (18) is fixedly arranged on the inner wall of the weighing box (16), a heat insulation plate (17) is sleeved on the surface of the limit scale column (18) in a sliding mode, a placing groove (19) is formed in the top of the heat insulation plate (17) in a concave mode, a crucible (21) is inserted into the inner wall of the placing groove (19), a spring (2) is fixedly arranged at the bottom of the heat insulation plate (17), and one end, away from the heat insulation plate (17), of the spring (2) is fixedly arranged at the bottom of the inner wall of the weighing box (16).

3. The rapid ash content measuring device for coal according to claim 2, wherein: an output shaft of a motor (13) is fixedly arranged at the end part of one driving roller (14), and the motor (13) is fixedly arranged at the end part of the supporting frame (11).

4. A rapid ash content measuring device for coal according to claim 3, characterized in that: the combustion cavity (15) slides in the combustion port of the tubular electric furnace body (1), and the horizontal distance between the side wall of the tubular electric furnace body (1) and the driving roller (14) is greater than the length of the combustion cavity (15).

5. The rapid ash content measuring device for coal according to claim 4, wherein: the conveyor belt (12) is made of a high-temperature-resistant material.

6. The rapid ash content measuring device for coal according to claim 1 or 2, characterized in that: the weighing assemblies are equidistantly distributed inside the combustion cavity (15).