Coal sample division kit
Through the use of coal sample shrinkage kit, the problems of low efficiency and high labor intensity in the preparation process of coal detection samples in the prior art have been solved, and rapid and efficient shrinkage operations have been achieved, meeting the needs of full moisture coal quality indicator detection.
Patent Information
- Application Number
- CN202421576147.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-04
AI Technical Summary
During the preparation of existing coal testing samples, manual reduction operation is low, labor intensity is high, and operation is complex, making it difficult to meet the needs of testing the quality indicators of all moisture coal.
A coal sample shrinkage kit is provided, including a metering bucket, a first guide, a quarter-piece and a stacking plate. Through the synergy of these components, the full moisture coal samples are evenly stacked into four stacks of four-piece shrinkage samples to achieve fast and efficient shrinkage operations.
It significantly improves the efficiency of manual reduction operations, reduces labor intensity, simplifies the operation process, and can better meet the testing needs of all moisture coal-related quality indicators. The kit structure is simple and easy to maintain.
Smart Images
Figure CN222913270U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a sample reduction kit, in particular to a coal sample reduction kit, and belongs to the production and manufacturing technology field of coal detection sample preparation appliances. Background Art
[0002] During the coal mining or trading process, relevant quality index analysis and detection are required. For the analysis and detection of coal quality indexes, the primary and initial work is naturally the preparation of coal detection samples.
[0003] The preparation of coal detection samples is to make the coal samples meet the test requirements of the analysis laboratory through processes such as crushing, sample reduction, mixing, air drying, and grinding for the initially collected coal primary samples.
[0004] Generally, the initially collected coal primary samples are mostly above 170 kg, and the nominal maximum particle size is ≥50 mm. For the dry analysis coal samples that meet the laboratory detection requirements, the particle size should be ≤0.2 mm, and the sample amount is about 60 - 300 g. For the total moisture samples without removing moisture, the particle size should be ≤13 mm, and each sample amount should be no less than 3 kg. Therefore, before the coal quality index detection, whether dry or wet, the initially collected about 170 kg of primary samples need to go through processes such as crushing, sample reduction, mixing, air drying, and grinding to meet the test sample requirements of the analysis laboratory.
[0005] Sample reduction is a process in coal sample preparation. Specifically, it is a process of obtaining a representative part of the samples from the crushed coal primary samples as the materials for subsequent sample preparation, analysis samples, and / or backup samples for the laboratory according to the sampling method specified in the standard, and disposing of the remaining primary samples as waste.
[0006] According to the provisions of GB / T474 - 2008 "Methods for Preparing Coal Samples", the sample reduction of total moisture coal samples includes mechanical sample reduction methods and manual sample reduction methods. The manual sample reduction methods are further divided into riffle method, checkerboard method, strip cutting method, coning and quartering method, and nine - point sampling method. Among them, the checkerboard method, strip cutting method, coning and quartering method, and nine - point sampling method all require manually coning or laying the collected coal primary samples, then flattening them, and then marking, intercepting, or shoveling. Usually, such a process takes about 20 minutes, and the operation links are relatively numerous. The operations of coning or laying, flattening, and intercepting or shoveling have relatively high technical requirements for the operators, and the labor intensity is also relatively large, which is time - consuming and laborious. In addition, for experiments that require obtaining samples of different quantity levels, they need to be obtained by mixing the reduced samples. Summary of the Utility Model
[0007] To overcome the deficiencies of the prior art, the present utility model particularly provides a coal sample reduction kit to improve the efficiency of manual reduction operations, reduce labor intensity, and better meet the testing requirements for the relevant quality indicators of coal with total moisture content.
[0008] To achieve the above object, the following technical solutions are specifically provided:
[0009] A coal sample reduction kit is used for the reduction operation of coal samples with total moisture content to obtain reduced samples required for testing coal quality indicators. It includes:
[0010] A metering hopper, a first guide, a quartering device, and a piling tray;
[0011] The metering hopper is used to measure and place coal samples with total moisture content for reduction operations. The first guide is arranged below the metering hopper and is used to guide the coal samples with total moisture content falling from the metering hopper. The upper part of the quartering device is inserted into the bottom of the first guide. The lower part of the quartering device consists of four uniformly distributed falling parts in a square shape, and the bottom ports of each falling part are respectively placed on the surface of the piling tray. The quartering device is used to evenly pile the coal samples with total moisture content flowing out from the bottom of the first guide into four reduced sample stacks on the surface of the piling tray.
[0012] Furthermore, the metering hopper is formed by connecting a conical hopper body and a cylindrical feeding pipe at the bottom.
[0013] Preferably, a bottom-opening butterfly valve is further provided between the hopper body and the feeding pipe of the metering hopper.
[0014] Optionally:
[0015] The first guide is a square sleeve, and a cover is provided at the top of the square sleeve. A circular hole that can insert the feeding pipe of the metering hopper is opened at the geometric center of the cover; or
[0016] The first guide is a frustum-shaped cylinder cover, and a cover is provided at the top of the frustum-shaped cylinder cover. A circular hole that can insert the feeding pipe of the metering hopper is opened at the geometric center of the cover; or
[0017] The first guide is a cylinder, and a circular hole or a conical hole with a smaller upper part and a larger lower part that connects the metering hopper and the quartering device is opened inside the cylinder.
[0018] Furthermore, the upper part of the quartering device is a uniformly quartered conducting part, and each conducting part is respectively connected to a falling part.
[0019] Optionally:
[0020] For the riffle, each of the four discharging members at its bottom is a triangular chute formed by splicing two flat plates on one side of each of them or a semi-circular chute.
[0021] Furthermore:
[0022] The coal sample reduction kit further includes a second guide and a multi-divider;
[0023] The second guide is a cylindrical member, and four material guiding holes are provided on the cylindrical member. Each of the material guiding holes respectively corresponds to the bottom ports of the four discharging members distributed in a square at the bottom of the riffle.
[0024] The multi-divider includes four introducing parts, and the four introducing parts are respectively docked with the four material guiding holes. Each of the introducing parts is further connected with a plurality of equalizing chutes for further dividing the four-reduced samples received by each of them into a plurality of further-reduced samples. Among them, the sample obtained from a single chute is a single-reduced sample, the sample obtained by adding the samples from two chutes is a double-reduced sample, and the sample obtained by adding the samples from four chutes is a quadruple-reduced sample, constituting reduced samples of different orders of magnitude required for detecting coal quality indicators.
[0025] Optionally:
[0026] The multi-divider is a nine-divider formed by square splicing of four riffles with their upper members. The four riffles forming the nine-divider, their respective discharging members either alone or in pairs or in fours constitute nine reduced sample chutes. Among them, a single discharging member constitutes the single-reduced sample chute of the nine-divider, the adjacent two discharging members in two of the four riffles are combined to form the double-reduced sample chute of the nine-divider, and the four discharging members of the four riffles gather together at one place to form the quadruple-reduced sample chute of the nine-divider.
[0027] Furthermore:
[0028] On the disk surface of the piling tray, two partition lines intersecting in a cross shape and a plurality of stacking point identifiers are further provided for dividing the disk surface area of the piling tray and marking the positions of the stacking points of different reduced samples. Among them:
[0029] The two partition lines intersecting in a cross shape divide the disk surface of the piling tray into four disk areas. The cross intersection point of the two partition lines constitutes the quadruple-reduced sample stacking point of the quadruple-reduced sample. The positions on each of the partition lines on both sides of the quadruple-reduced sample stacking point and corresponding to the placement points of the double-reduced sample chutes are the double-reduced sample stacking points, and the positions in the four different disk areas and corresponding to the placement points of the four different single-reduced sample chutes are the single-reduced sample stacking points.
[0030] Furthermore:
[0031] Through holes are formed at the stacking points, and a reduced sample tank is provided at the bottom of each through hole. Each reduced sample tank is used to collect the reduced samples flowing out of each sample reduction chute respectively.
[0032] Compared with the prior art, the beneficial effects and progress of the present utility model are as follows:
[0033] The coal sample reduction kit provided by the present utility model includes a metering hopper, a first guide, a quartering device, and a piling tray. Among them, the metering hopper is used to measure and place the total moisture coal sample to be reduced. The first guide is arranged below the metering hopper and is used to guide the total moisture coal sample falling from the metering hopper. The upper member of the quartering device is inserted into the bottom of the first guide. The lower member of the quartering device is composed of four evenly distributed blanking members in a square shape, and the bottom ports of each blanking member are respectively placed on the tray surface of the piling tray, so as to evenly pile the total moisture coal sample flowing out from the bottom of the first guide into four reduced sample stacks on the piling tray, thereby achieving the purpose of quartering the total moisture coal sample.
[0034] Obviously, if each quartered sample is further reduced by the coal sample reduction kit provided by the present utility model, sixteen evenly divided reduced samples can be obtained. Repeating this way, the test samples with the required weight for coal quality index analysis and detection can be obtained, which is convenient, fast, time-saving and labor-saving. It can be seen that through the coal sample reduction kit provided by the present utility model, the reduction of the total moisture coal sample can be completed conveniently and quickly, which is not only time-saving and labor-saving, but also the kit has a simple structure, is easy to manufacture and use, and is easy to maintain and repair. Description of the Drawings
[0035] To more clearly illustrate the technical solutions of the present utility model, the drawings required for the embodiments of the present utility model will be briefly introduced below.
[0036] Obviously:
[0037] The drawings in the following description are only partial embodiment drawings of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts, and these other drawings also belong to the scope of the drawings required for the embodiments of the present utility model.
[0038] Figure 1 It is a three-dimensional exploded structural schematic diagram of a coal sample reduction kit provided by an embodiment of the present utility model;
[0039] Figure 2 It is a front view structural schematic diagram of the quartering device of a coal sample reduction kit provided by an embodiment of the present utility model;
[0040] Figure 3 It is a top view structural schematic diagram of the quartering device of a coal sample reduction kit provided by an embodiment of the present utility model;
[0041] Figure 4 Schematic diagram of the three-dimensional structure of a coal sample reduction kit with nine-way reduction provided by an embodiment of the present utility model;
[0042] Figure 5 Schematic diagram of the front view structure of a coal sample reduction kit with nine-way reduction provided by an embodiment of the present utility model;
[0043] Figure 6 Schematic diagram of the front view structure of the second guide of a coal sample reduction kit with nine-way reduction provided by an embodiment of the present utility model;
[0044] Figure 7 Schematic diagram of the top view structure of the second guide of a coal sample reduction kit with nine-way reduction provided by an embodiment of the present utility model;
[0045] Figure 8 Schematic diagram of the front view structure of a nine-way reducible coal sample reduction kit including a reduced sample tank provided by an embodiment of the present utility model.
[0046] In the figure:
[0047] 10 - metering hopper, 11 - hopper body, 12 - blanking pipe, 13 - butterfly valve;
[0048] 20 - first guide;
[0049] 30 - riffle, 31 - upper member, 32 - blanking member;
[0050] 40 - piling tray, 41 - partition line, 42 - quadruple sample reduction piling point, 43 - multiple sample reduction piling point, 44 - single sample reduction piling point, 45 - through hole;
[0051] 50 - second guide, 51 - material guiding hole;
[0052] 60 - multi - splitter;
[0053] 70 - reduced sample tank. Detailed implementation manners
[0054] To make the objectives, technical solutions, beneficial effects and significant improvements of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings provided for the embodiments of the present utility model. Obviously, all the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0055] It should be noted that:
[0056] The terms "comprising" and any variations thereof in the description and claims of the present utility model are intended to cover non-exclusive inclusion. For example, it includes not only a series of listed technical features and structural components, but also optionally includes technical features and structural components that are not listed, or optionally further includes the connection relationships between these technical features and structural components.
[0057] It should be understood that:
[0058] In the description of the embodiments of the present utility model, the directional or positional terms such as "upper", "lower", "one side", "both sides", etc. are only based on the orientation or positional relationship shown in the drawings of the embodiments of the present utility model, for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element must have a specific orientation, specific orientation structure and operation. Therefore, it should not be construed as a limitation to the present utility model.
[0059] In the present utility model, unless otherwise clearly defined and limited, the terms such as "arranged" and "provided with" should be understood in a broad sense. For example, it can be fixedly arranged, or can be a detachable movable arrangement, or can be a fixed connection relationship that becomes an integral body, and the connection therein can be a direct connection, or can be an indirect connection through an intermediate medium, or can also be the communication inside two structural elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0060] It should also be noted that the following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.
[0061] Next, the technical solution of the present utility model will be described in detail with specific embodiments.
[0062] Embodiment
[0063] This embodiment provides a coal sample reduction kit for reducing a total moisture coal sample to obtain a reduced sample required for detecting coal quality indicators.
[0064] As Figure 1 shown in the three-dimensional exploded structural schematic diagram of a coal sample reduction kit provided by an embodiment of the present utility model:
[0065] A coal sample reduction kit includes:
[0066] A metering hopper 10, a first guide 20, a quartering device 30 and a piling tray 40, wherein:
[0067] The metering hopper 10 is used to meter the total moisture coal sample (not shown in the figure) to be subjected to the reduction operation. The first guide 20 is arranged below the metering hopper 10 and is used to guide the total moisture coal sample falling from the metering hopper 10. The upper member 31 of the riffle 30 is inserted into the bottom of the first guide 20. The lower member of the riffle 30 is composed of four discharge members 32 evenly distributed in a square shape, and the bottom ports of the respective discharge members 32 are disposed on the surface of the splitting tray 40. The riffle 30 is used to evenly stack the total moisture coal sample flowing out from the bottom of the first guide 20 into four quartered sample stacks on the surface of the splitting tray 40.
[0068] Furthermore, it can also be seen from Figure 1 that:
[0069] The metering hopper 10 is formed by connecting a conical hopper body 11 and a cylindrical discharge pipe 12 at the bottom.
[0070] Optionally, in the coal sample reduction kit provided in this embodiment:
[0071] The first guide 20 can be a square sleeve, and a cover is provided at the top of the square sleeve. A circular hole for inserting the discharge pipe 12 of the metering hopper 10 is opened at the geometric center of the cover; or
[0072] The first guide 20 is a frustum-shaped cylinder cover (not shown in the figure), and a cover is provided at the top of the frustum-shaped cylinder cover. A circular hole for inserting the discharge pipe 12 of the metering hopper 10 is opened at the geometric center of the cover; or
[0073] The first guide 20 is a cylinder, and a circular hole or a conical hole with a smaller upper part and a larger lower part for connecting the metering hopper 10 and the riffle 30 is opened inside the cylinder.
[0074] As Figure 2 shown in the front view structural schematic diagram of the riffle of a coal sample reduction kit provided in an embodiment of the present invention, Figure 3 and the top view structural schematic diagram of the riffle of a coal sample reduction kit provided in an embodiment of the present invention:
[0075] In the coal sample reduction kit provided in this embodiment, the upper member 31 of the riffle 30 is a uniformly quartered conducting member, and each conducting member is respectively communicated with a discharge member 32.
[0076] Optionally, the four discharge members 32 at the bottom of the riffle 30 are respectively a triangular chute formed by splicing two flat plates on one side of each of them or a semi-circular chute (not shown in the figure).
[0077] From the above description, it can be seen that:
[0078] The coal sample reduction kit provided by this embodiment includes a metering hopper, a first guide, a quartering device, and a piling tray. Among them, the metering hopper is used to measure and place the total moisture coal sample to be reduced. The first guide is arranged below the metering hopper and is used to introduce the total moisture coal sample falling from the metering hopper. The upper component of the quartering device is inserted into the bottom of the first guide. The lower component of the quartering device consists of four evenly distributed dropping components in a square shape, and the bottom ports of each dropping component are respectively placed on the tray surface of the piling tray, and are used to evenly pile the total moisture coal sample flowing out from the bottom of the first guide into four quartered sample stacks on the piling tray, so as to achieve the purpose of quartering the total moisture coal sample.
[0079] Obviously, if the four-quartered samples obtained from one reduction are further reduced through the coal sample reduction kit provided by this embodiment, sixteen reduced samples of the original total moisture coal sample can be obtained, that is, evenly divided reduced samples with each weight being 1 / 16 of the original total moisture coal sample amount can be obtained. Repeating this way, the test samples meeting the weight requirements for coal quality index analysis and detection can be obtained, which is convenient, fast, time-saving and labor-saving. Moreover, the coal sample reduction kit provided by this embodiment has a simple structure, is convenient to manufacture and use, and is easy to maintain and repair. Compared with the prior art, it is ingenious, highly creative, has unique advantages, and has great promotion and application value.
[0080] Furthermore, as Figure 1 shown:
[0081] In the coal sample reduction kit provided by this embodiment, a bottom-opening butterfly valve 13 is further arranged between the hopper body 11 of the metering hopper 10 and the feeding pipe 12.
[0082] It can be seen that through the butterfly valve, the volume of the total moisture coal sample to be reduced can be accurately measured. That is, after the volume of the hopper body is determined, close the butterfly valve, pour the total moisture coal sample into the hopper body and level the coal surface at the upper opening of the hopper body, and the volume of the total moisture coal sample to be reduced can be accurately obtained, which is convenient, fast, time-saving and labor-saving;
[0083] In addition, through the butterfly valve, the bias of the sample during the reduction process can be effectively avoided. Because after the total moisture coal sample to be reduced is placed in the hopper body, the loss or evaporation of moisture in the sample can be effectively avoided, and the segregation of the sample particle size can also be effectively avoided. And when the butterfly valve is opened, the total moisture coal sample to be reduced can flow out of the hopper body quickly, directly and completely for reduction, so as to meet the requirements of coal sample preparation.
[0084] Furthermore, the coal sample reduction kit provided by this embodiment can be further expanded.
[0085] Such as Figure 4 is the three-dimensional structure schematic diagram of a coal sample reduction kit capable of nine-fold reduction provided by an embodiment of the present invention, Figure 5The schematic front view structure diagram of a coal sample reduction kit capable of nine-fold reduction provided by an embodiment of the present utility model, Figure 6 The schematic front view structure diagram of the second guide of a coal sample reduction kit capable of nine-fold reduction provided by an embodiment of the present utility model, Figure 7 As shown in the schematic top view structure diagram of the second guide of a coal sample reduction kit capable of nine-fold reduction provided by an embodiment of the present utility model:
[0086] The coal sample reduction kit provided in this embodiment further includes:
[0087] A second guide 50 and a multi-divider 60;
[0088] The second guide 50 is a cylindrical member, and four material guiding holes 51 are provided on the cylindrical member. Each material guiding hole 51 respectively corresponds to the bottom ports of the four blanking members 32 at the bottom of the corresponding quartering device 30 whose bottom is square;
[0089] The multi-divider 60 includes four introduction parts. The four introduction parts are respectively docked with the four material guiding holes 51 of the second guide 50. Each introduction part is further connected with a plurality of equalizing chutes for evenly dividing the four-fold reduced sample received by it into a plurality of re-reduced samples. Among them:
[0090] The sample obtained from a single chute is a single-fold reduced sample, the sample obtained by adding two chutes is a double-fold reduced sample, and the sample obtained by adding four chutes is a quadruple-fold reduced sample, constituting reduced samples of different orders of magnitude required for the detection of coal quality indicators.
[0091] From the above description, it can be seen that:
[0092] The expanded coal sample reduction kit has a second guide and a multi-divider, which can directly perform secondary reduction on the reduced sample after the first reduction. Moreover, not only can a single-fold reduced sample after secondary reduction be obtained, but also a double-fold reduced sample and a quadruple-fold reduced sample can be obtained simultaneously. It can not only provide the reduced samples meeting the requirements for the detection of coal quality indicators, but also provide reduced samples of different orders of magnitude for the detection of coal quality indicators, providing multiple choices for the detection and / or retention of coal samples, with high innovation and practicality, and providing a new method and a new choice for the preparation of coal samples.
[0093] Optionally, from Figure 4 or Figure 5 it can be seen that:
[0094] The coal sample reduction kit provided in this embodiment has a multi-splitter 60 which is a nine-splitter formed by four quarter-splitters 30 joined together in a square with their respective upper members 31. Among the four quarter-splitters 30 that make up the nine-splitter, their respective blanking members 32 either individually, in pairs, or in groups of four form nine sample reduction chutes. Specifically, a single blanking member 32 forms a single-portion sample reduction chute of the nine-splitter, two adjacent blanking members 32 of two quarter-splitters 30 combine to form a double-portion sample reduction chute of the nine-splitter, and one blanking member 32 from each of the four quarter-splitters 30 comes together to form a quadruple-portion sample reduction chute of the nine-splitter.
[0095] Obviously, combining four quarter-splitters into a multi-splitter capable of nine-splitting is not only convenient and fast, but also can make full use of the existing quarter-splitters, thereby reducing the manufacturing and maintenance costs of the kit and improving work efficiency.
[0096] Furthermore, as can be seen from Figure 1 :
[0097] On the disk surface of the stacking tray 40 of the coal sample reduction kit provided in this embodiment, there are also two partition lines 41 intersecting at right angles and multiple stack point identifiers (such as the circles shown in the figure) for dividing the disk surface area of the stacking tray 40 and indicating the positions of the stack points of different reduced samples. In this way, different coal sample reduction stacks can be conveniently identified, thereby improving work efficiency and reducing errors. Among them:
[0098] The two partition lines 41 intersecting at right angles divide the disk surface of the stacking tray 40 into four disk areas. The intersection point of the two partition lines 41 forms a quadruple-portion sample reduction stack point 42 for quadruple-portion reduction. On each partition line 41, on both sides of the quadruple-portion sample reduction stack point 42 and corresponding to the placement points of the double-portion sample reduction chutes are double-portion sample reduction stack points 43, and the positions corresponding to the placement points of the four different single-portion sample reduction chutes in the four different disk areas are single-portion sample reduction stack points 44.
[0099] Furthermore, as shown in Figure 8 the front view structural schematic diagram of a nine-reducible coal sample reduction kit including a reduced sample can provided in an embodiment of the present invention:
[0100] Through holes 45 are provided at the stack points, and at the bottom of each through hole 45, there is also a reduced sample can 70. Each reduced sample can 70 is used to collect the reduced samples flowing out from each sample reduction chute (not shown in the figure).
[0101] Obviously, with such an expansion, the reduced sample directly enters the reduced sample tank. This not only further improves the efficiency of the reduction work, eliminates the shoveling process of the reduced sample, and reduces the labor intensity, but also further eliminates the sample loss and bias caused by water loss and incomplete shoveling of the sample, thereby further improving the preparation quality of the coal sample and ensuring the accuracy and reliability of the coal sample analysis and detection.
[0102] In summary, it can be seen that:
[0103] Through the metering hopper, the first guide, the quartering device and the piling tray, the present utility model can obtain a new reduction kit that meets the requirements of the reduction operation of the total moisture coal sample. It can not only obtain the reduced sample required for detecting the coal quality index, but also provide a new idea, method and tool for the preparation of coal samples. Moreover, by expanding, it can obtain multiple copies of the reduced sample with the same weight at one time, saving time and effort. It not only ensures the quality of the coal sample, but also improves the work efficiency and reduces the labor intensity. Its design concept is novel and unique, extremely creative, and the kit has a simple structure, is easy to manufacture and use, and is easy to maintain. Compared with the prior art, it can achieve substantial technical effects and progress. Therefore, it has great promotion and application value.
[0104] In the description process of the above specification:
[0105] The descriptions of terms such as "this embodiment", "the embodiment of the present utility model", "as shown in...", "further", etc. mean that the specific features, structures, materials or characteristics described in the embodiment are included in at least one embodiment of the present utility model. In this specification, the schematic descriptions of the above terms are not necessarily directed to the same embodiment, and moreover, the specific features, structures, materials or characteristics, etc. can be combined or combined in any one or more embodiments in a suitable manner;
[0106] In addition, on the premise of not generating contradictions, those of ordinary skill in the art can combine or combine the different embodiments and the features of different embodiments described in this specification.
[0107] Finally, it should be noted that:
[0108] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions described in the embodiments of the present utility model. The non-essential improvements, adjustments or replacements made by those skilled in the art according to the content recorded in this specification all fall within the scope protected by the present utility model.
Claims
1. A coal sample reduction kit, used for the reduction of full-moisture coal samples to obtain the reduced samples required for coal quality index detection, characterized in that: include: A metering hopper, a first guide, a quadrant and a stacking plate; The measuring bucket is used for measuring and placing full-moisture coal samples to be reduced. The first guide is arranged below the measuring bucket to introduce the full-moisture coal samples falling from the measuring bucket. The upper component of the quadrupole is plugged into the bottom of the first guide. The lower component of the quadrupole consists of four blanking pieces evenly distributed in a square shape, and the bottom port of each blanking piece is disposed on the surface of the stacking plate. The quadrupole is used to evenly stack the full-moisture coal samples flowing out of the bottom of the first guide into four four-reduced sample stacks on the surface of the stacking plate.
2. The coal sample reduction kit according to claim 1, characterized in that: The measuring hopper is formed by connecting a conical hopper body and a cylindrical feeding pipe at the bottom.
3. The coal sample reduction kit according to claim 2, characterized in that: A bottom-opening butterfly valve is also arranged between the bucket body of the metering bucket and the feeding pipe thereof.
4. The coal sample reduction kit according to claim 2, characterized in that: The first guide is a square sleeve, and a cover is provided on the top of the square sleeve, and a circular hole is provided at the geometric center of the cover to insert the discharge pipe of the metering hopper; or The first guide is a truncated cone-shaped barrel cover, and a cover is provided on the top of the truncated cone-shaped barrel cover, and a circular hole is provided at the geometric center of the cover to insert the discharge pipe of the metering hopper; or The first guide is a cylinder, and a circular hole or a conical hole with a small top and a large bottom is provided inside the cylinder to connect the metering hopper and the quadrant.
5. The coal sample reduction kit according to claim 1, characterized in that: The upper component of the quadrant is a conductive piece evenly divided into four parts, and each conductive piece is connected to one blanking piece respectively.
6. The coal sample reduction kit according to claim 5, characterized in that: The four blanking pieces at the bottom of the quadrant are respectively triangular chute or semicircular chute formed by two flat plates spliced together through their respective one sides.
7. The coal sample reduction kit according to claim 1, characterized in that: Also includes: A second director and a multiplexer; The second guide is a cylindrical component, and the cylindrical component is provided with four material guide holes, each of which has a bottom port corresponding to four blanking pieces of the quadrant whose bottom is distributed in a square shape; The multi-divider includes four introduction parts, and the four introduction parts are respectively connected to the four material guide holes. Each of the introduction parts is also connected to a number of equal-dividing slides for equally dividing the four-reduced samples received by each of them into a number of re-reduced samples, among which the sample obtained by a single slide is a single reduction sample, the sample obtained by adding two slides is a double reduction sample, and the sample obtained by adding four slides is a four-fold reduction sample, constituting reduced samples of different numbers of levels required for coal quality index detection.
8. The coal sample reduction kit according to claim 7, characterized in that: The multi-divider is a nine-divider formed by four four-dividers with their respective upper components assembled in a square shape, and the four four-dividers constituting the nine-divider have their respective blanking pieces either individually or in pairs or in four groups to form nine reduction slides, wherein a single blanking piece constitutes a single reduction slide of the nine-divider, two adjacent blanking pieces of two four-dividers are combined to form a double reduction slide of the nine-divider, and a blanking piece of each of the four four-dividers is gathered together to form a quadruple reduction slide of the nine-divider.
9. The coal sample reduction kit according to claim 8, characterized in that: The stacking tray is also provided with two cross-shaped partition lines and a plurality of stacking point markers on its tray surface, which are used to divide the tray surface area of the stacking tray and mark the positions of the stacking points of different reduced samples, wherein: The two cross-shaped partition lines divide the disk surface of the stacking disk into four disk areas. The cross-intersection point of the two partition lines constitutes the four-fold reduction stacking point of the four-fold reduction. The positions on each partition line located on both sides of the four-fold reduction stacking point and corresponding to the placement points of the multiple reduction slide are multiple reduction stacking points, and the positions located in four different disk areas and corresponding to the placement points of four different single reduction slides are single reduction stacking points.
10. The coal sample reduction kit according to claim 9, characterized in that: A through hole is provided on the stacking point, and a reduced sample tank is provided at the bottom of each through hole. Each reduced sample tank is used to collect the reduced samples flowing out of each reduced sample slideway.