CN220380843U

CN220380843U - Soil sample grinds screening plant

Info

Publication number: CN220380843U
Application number: CN202321838767.2U
Authority: CN
Inventors: 郭昆; 张敏; 张密兰; 杨海龙
Original assignee: Hebei Jike General Equipment Co ltd
Current assignee: Hebei Jike General Equipment Co ltd
Priority date: 2023-07-13
Filing date: 2023-07-13
Publication date: 2024-01-23
Anticipated expiration: 2033-07-13

Abstract

The application provides a soil sample grinding and screening device, which comprises a base; the swinging unit is arranged on the base; a grinding cylinder mounted on the swing unit; the screen is arranged at the bottom of the grinding cylinder; the cover plate is arranged at the top of the grinding cylinder and is provided with a feed inlet; the grinding assembly is arranged above the cover plate and comprises a driving unit; and the grinding device is connected with the output shaft of the driving unit and is arranged in the grinding cylinder. Can integrate grinding and screening functions on one piece of equipment, save occupation space and improve the treatment efficiency of soil samples.

Description

Soil sample grinds screening plant

Technical Field

The application relates to the collection and processing of soil samples, in particular to a soil sample grinding and screening device.

Background

Whether the treatment of living environment pollution or the maintenance and management of crop cultivation growing environment, the soil in each place needs to be collected and analyzed.

After the soil is collected, a certain treatment is needed to carry out related analysis work. The soil sample retrieved from the field is subjected to a preparation process after registration numbering: air drying, grinding, sieving, mixing, and bottling for each measurement. For example, soil heavy metals are generally baked to thousand samples, and semi-volatile persistent organic pollutants are generally analyzed by freeze-drying samples; the determination of volatile organic contaminants is typically performed on fresh samples. Fresh samples may be stored temporarily in a refrigerator or freezer, but must be extracted within 10 days.

The traditional practice is bottling after the laboratory or detection mechanism carries out pretreatment on soil, each laboratory or detection mechanism needs to be provided with hands and equipment for carrying out soil sample treatment, is suitable for a small amount of soil detection tasks, and consumes time and labor when large-scale detection is carried out. An ideal method is to arrange special automatic treatment equipment, and to carry out batch treatment on the collected soil by an automatic means as much as possible, so that the soil samples can be rapidly and efficiently treated in batches, and the soil samples can meet the detection requirement. In addition, the special equipment is also used for arranging the processing equipment in a special place in a region, then the processing requirements of the soil samples existing in the region are concentrated together for processing, and then the soil samples are intensively distributed and transported, so that the working pressure of each detection mechanism and each laboratory can be relieved, more efforts can be put on the detection and analysis of the soil samples, obviously, the requirements of the workers on the expertise and the knowledge level are higher, and the processing mode is more reasonable from the aspect of macroscopic resource arrangement. While also placing various new demands on the corresponding devices.

In the soil sample treatment process, the soil sample is required to be ground and crushed to different particle sizes, then sieved and respectively filled into different containers for storage and detection.

At present, after the soil sample is ground in one grinding tank, screening is carried out, and the common practice is that grinding with different degrees is carried out in sequence, then split charging is carried out in sequence, operation is carried out repeatedly, and continuous operation is suitable, but not flexible enough, and for certain requirements, the method cannot be realized. For example, to grind soil samples of different mesh numbers to different degrees, and then screen the soil samples with corresponding screens, because the cost of grinding and screening equipment is high and the occupied space is large, it is conventional practice to replace screens on different equipment, adjust or replace grinding tools to obtain soil samples of different mesh numbers, and obviously, frequent replacement of screens or adjustment of grinding tools will reduce the treatment efficiency.

Thus, there is a need to provide a solution for improving the processing efficiency in the context of batch processing of soil samples.

Disclosure of Invention

In the soil sample treatment process, the grinding and sieving times of the large-granularity sample such as 10 meshes are more, because the sample with large granularity is more, on the other hand, in order to optimize the use of the equipment, the soil sample is often ground into the sample with large granularity first, and then further grinding is carried out.

The application provides a soil sample grinds screening plant, with the grinding of big granularity and screening integration to a equipment completion, equipment integrated level is high, and the mechanism is compact, occupies less space, but can be with the special equipment processing of grinding screening of big granularity that the frequency is very high, reduces the number of times of changing the screen cloth, also reduces the number of times of grinding utensil change or adjustment, after carrying out the grinding screening of big granularity, can directly bottling and leave a sample, also can do further grinding processing. The soil sample treatment efficiency is improved on the whole, and the method is particularly suitable for the scene of batch concentrated soil sample treatment. To solve at least one of the above technical problems.

In order to achieve the above purpose, the technical scheme adopted by the application is as follows:

a soil sample grinding and screening device comprises

A base;

the swinging unit is arranged on the base;

a grinding cylinder mounted on the swing unit;

the screen is arranged at the bottom of the grinding cylinder;

the cover plate is arranged at the top of the grinding cylinder and is provided with a feed inlet communicated with the interior of the grinding cylinder;

the grinding component arranged above the cover plate comprises

A driving unit; and the grinding device is connected with the output shaft of the driving unit and is arranged in the grinding cylinder.

The soil sample is put into the grinding cylinder through the feeding hole, the ground soil sample can be continuously ground by the grinding tool, the ground soil sample can move to the bottom of the grinding cylinder under the action of gravity, the soil sample meeting the mesh requirement can be screened out and falls from the screen, a vessel for containing the soil sample can be arranged below the soil sample, and the fallen soil sample is received. Meanwhile, the swinging unit can ensure that screening treatment is successfully completed, and can assist in increasing the grinding effect, because the swinging drives the grinding cylinder to swing in the grinding process, the frequency of impact between the soil sample and the grinding tool and the inner wall of the grinding cylinder can be increased.

Therefore, the grinding and screening treatment of the soil samples can be continuously and rapidly completed, the transfer link of the soil samples to the screening device after grinding is reduced, the links of replacing the device and adjusting the working parameters in the middle are also reduced aiming at the treatment of one mesh number, the integrated degree of the device is high, the occupied area is small, and the treatment efficiency can be remarkably improved under the application scene of batch treatment of the soil samples. In addition, the equipment keeps a stable working state for a long time, which is also beneficial to equipment maintenance and service life improvement.

In a preferred embodiment, the swing unit comprises

The grinding cylinder is fixed on the supporting seat;

the swing shaft is connected with the supporting seat;

and the swing driving assembly is connected with the swing shaft.

In a preferred embodiment, the number of pendulum shafts is two, arranged on opposite sides of the support base.

In a preferred embodiment, the swing drive assembly comprises

A bearing housing, the pendulum shaft being supported by the bearing housing;

the rotating block is fixedly connected with the swing shaft and is provided with a sliding channel;

an optical axis, one end of which passes through the sliding channel and forms a moving pair with the sliding channel;

the other end of the optical axis is rotationally connected with the connecting block;

a lead screw nut assembly comprising

The nut assembly comprises a moving block and a nut arranged in the moving block;

the screw rod assembly comprises a screw rod matched with the nut and a supporting seat for supporting the screw rod;

the nut can linearly reciprocate along the axis of the screw rod, and the axis of the screw rod and the axis of the optical axis are perpendicular to the axis space of the pendulum shaft.

In a preferred embodiment, the number of the bearing seats is two, and the bearing seats are symmetrically arranged on two sides of the grinding cylinder.

In a preferred embodiment, the feed inlet is funnel-shaped.

In a preferred embodiment, the soil sample grinding and screening device further comprises a weight plate arranged at the bottom of the base, wherein the weight of the weight plate is not less than 20% of the total weight of the soil sample grinding and screening device.

In a preferred embodiment, the screen is snap-connected to the bottom of the grinding drum.

In a preferred embodiment, the surface of the grinding cylinder is provided with an annular groove;

the supporting seat comprises a pair of supporting seat half bodies, and the supporting seat half bodies are formed with semi-ring bodies matched with the annular grooves.

In a preferred embodiment, a pair of said support halves are bolted or snap-connected.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a schematic diagram showing the overall structure of a soil sample grinding and screening device according to an embodiment;

FIG. 2 is a schematic view showing the overall structure of a soil sample grinding and screening apparatus according to another embodiment;

FIG. 3 is a schematic view showing the overall structure of a soil sample grinding and sieving apparatus according to an embodiment, wherein a grinding cylinder is omitted;

FIG. 4 is a schematic view showing the structure of a supporting seat half of a soil sample polishing and screening apparatus according to an embodiment;

FIG. 5 is a schematic view showing the structure of a supporting base half of a soil sample polishing and screening apparatus according to another embodiment;

FIG. 6 is a schematic view showing the structure of a grinding drum in a soil sample grinding and sieving device according to an embodiment;

FIG. 7 is a schematic view showing the structure of a cover plate in a soil sample polishing and screening apparatus according to an embodiment;

fig. 8 is a schematic view showing a structure of a cover plate of the soil sample polishing and screening apparatus according to another embodiment.

Detailed Description

In order to more clearly explain the general concepts of the present application, reference is made to the following detailed description, taken in conjunction with the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than as described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In the description of the present application, it should be understood that the terms "upper," "lower," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. However, it is noted that a direct connection indicates that two bodies connected together do not form a connection relationship by an excessive structure, but are connected to form a whole by a connection structure. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

The description herein as relating to "first," "second," etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance thereof or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

Referring to fig. 1 and 2, in one embodiment, a soil sample grinding and screening apparatus is disclosed that includes a base 100, which may be made of a single piece of steel sheet, or welded to a frame in the form of a steel structure to support other structures that perform grinding and screening functions.

The swing unit 200 provided on the base provides a shaft capable of swinging regularly.

The grinding drum 300 mounted on the swing unit 200, the soil sample is ground in the grinding drum 300.

The screen 400 provided at the bottom of the grinding drum 300 is sieved by grinding the soil sample meeting the mesh number requirement, and falls into the magazine of the base 100 in the drawing.

The cover plate 500 is disposed on top of the grinding cylinder 300, and referring to fig. 7 and 8, a feed port communicating with the inside of the grinding cylinder 300 is disposed on the cover plate 500, as shown in the figure, the cover plate 500 covers the upper opening of the grinding cylinder and closes the upper opening.

The polishing assembly 600 disposed above the cover plate 300 includes a drive unit 601, such as a combination of an electric motor and a speed reducer in the figures, and in some other embodiments, the drive unit 601 may be a pneumatic or hydraulic motor. Referring to fig. 3, a grinding tool 602 connected to an output shaft of the driving unit 601, the grinding tool 602 having a main shaft and grinding wings provided on the main shaft, the grinding tool 602 protruding into the grinding drum 300 through the center hole 502 of the cover plate 500.

Referring to fig. 2, the swing unit 200 includes a support base 201, and the polishing cylinder 300 is fixed to the support base 201; a pendulum shaft 202 connected to the support base 201; and a swing drive assembly 203 coupled to the swing shaft 202.

The grinding cylinder fixed on the supporting seat can be driven to continuously swing through the swinging unit.

As shown in fig. 2, the pendulum shafts 202 are two in number, and are arranged on opposite sides of the support base 201. The grinding cylinder can be supported more stably, and the working stability is improved.

Referring to fig. 2, the swing drive assembly 203 includes a bearing block 2037, and the pendulum shaft 202 is supported by the bearing block 2037; a rotating block 2031 fixedly connected with the pendulum shaft 202, the rotating block 2031 being formed with a sliding passage; an optical axis 2032, one end of the optical axis 2032 passing through the sliding passage and forming a moving pair with the sliding passage; that is, the optical axis can be linearly reciprocated along the sliding passage.

The other end of the optical axis 2032 is rotationally connected with the connecting block through a pivoting structure 2033 arranged at the other end of the optical axis; a screw nut assembly including a nut assembly 2034 including a moving block and a nut (not shown) provided in the moving block; a screw assembly including a screw 2035 matched with the nut and a screw support 2036 supporting the screw 2035;

as shown in the figure, the nut can linearly reciprocate along the axis of the screw, and the axis of the screw and the axis of the optical axis are both spatially perpendicular to the axis of the pendulum shaft. The driving mode can be selected to realize the driving of swinging, for example, the nut is driven to rotate, and in the rotating process, the nut moves back and forth in the axial direction of the screw rod according to the switching of positive and negative steering. For another example, the screw is driven to rotate, and during the rotation process, the screw rotates forward and backward to drive the nut to move back and forth. Since the screw nut mechanism is a mechanism in a very common mechanical field, the principle and constitution thereof are well known to those skilled in the art, the driving mode and the corresponding driving device are not illustrated. Those skilled in the art can understand that the straight line module of the finished product can be directly purchased and applied to the technical scheme of the application.

As shown in fig. 1, the number of the bearing seats 2037 is two, and the bearing seats 2037 are symmetrically disposed on both sides of the grinding cylinder 300. So can more stable support swing structure, the relatively big dynamic load that will take place in the swing process, at this moment, to the pendulum rod, torsion and shearing force that receives also constantly change, symmetrical arrangement bearing structure can ensure the holistic stability of device in the swing process to can protect the pendulum rod, prolong its life-span.

In combination with fig. 7 and 8, the feeding hole 501 is funnel-shaped, that is, the upper hole is larger and the lower hole is smaller, and as shown in fig. 1 and 2, a guide funnel is further arranged above the feeding hole, so that the soil sample falls into the grinding cylinder from a smaller area and is gradually compacted, even has a trend of being accumulated at the feeding hole, at this time, on one hand, the grinding cylinder is in a swinging state, and on the other hand, the soil sample falling continuously can smash into the soil sample falling into the funnel and the feeding hole, thus the soil sample entering into the grinding cylinder obtains a speed higher than that of a free falling state, and the impact of the soil sample when striking the grinding tool can be increased, so that the grinding effect is improved. In addition, because the device is continuously and uninterruptedly ground and sieved, the rate of feeding is adjusted to be capable of uninterruptedly feeding, and the funnel-shaped structure is also beneficial to reducing sprinkling during feeding, for example, a feeding pipeline can extend into a funnel.

In addition, referring to fig. 1 and 2, the soil sample grinding and screening device further comprises a weight plate 101 disposed at the bottom of the base 100, wherein the weight of the weight plate 101 is not less than 20% of the total weight of the soil sample grinding and screening device. Because the existence of dynamic load can make the whole focus of device unstable, through increasing the counter weight this moment, increase the stability of device, make the focus shift down, reduce the scope that the focus floated.

As shown in fig. 1, the screen 400 is connected with the bottom of the grinding drum 300 through the buckles 401, and the buckles are uniformly distributed around the screen, so that the screen can be reliably fixed, and the screen can be conveniently replaced and maintained.

Further, with reference to fig. 4 to 6, the surface of the grinding cylinder 300 is provided with an annular groove 301; the supporting seat 201 includes a pair of supporting seat halves 2011, and the supporting seat halves 2011 are formed with half ring 2012 matching the annular groove 301. Through the gomphosis of semi-ring body and ring channel, can guarantee that the grinding body keeps stable at swing grinding in-process to, two halves also can conveniently dismantle.

In fig. 2, the pair of support halves may be bolted together, and in other embodiments, snap-fit connections may be used to form a clip-like structure.

The non-mentioned places in the application can be realized by adopting or referring to the prior art.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.

Claims

1. The utility model provides a soil sample grinds screening plant which characterized in that includes

A base;

the swinging unit is arranged on the base;

a grinding cylinder mounted on the swing unit;

the screen is arranged at the bottom of the grinding cylinder;

the cover plate is arranged at the top of the grinding cylinder and is provided with a feed inlet;

the grinding component arranged above the cover plate comprises

2. The soil sample grinding and screening apparatus of claim 1, wherein said swing unit comprises

The grinding cylinder is fixed on the supporting seat;

the swing shaft is connected with the supporting seat;

and the swing driving assembly is connected with the swing shaft.

3. A soil sample grinding and screening apparatus as claimed in claim 2, wherein the number of pendulum shafts is two, arranged on opposite sides of the support base.

4. The soil sample grinding and screening apparatus of claim 2, wherein said oscillating drive assembly comprises

A bearing housing, the pendulum shaft being supported by the bearing housing;

screw nut assembly comprising a nut

The assembly comprises a moving block and a nut arranged in the moving block;

the screw assembly comprises a screw matched with the nut and a screw supporting seat for supporting the screw;

5. The soil sample grinding and screening device according to claim 4, wherein the number of the bearing seats is two, and the bearing seats are symmetrically arranged on two sides of the grinding cylinder.

6. The soil sample grinding and screening device of claim 1, wherein the feed inlet is funnel-shaped.

7. The soil sample grinding and screening device of claim 1, further comprising a weight plate disposed at a bottom of the base, the weight of the weight plate being no less than 20% of a total weight of the soil sample grinding and screening device.

8. The soil sample grinding and screening device of claim 1, wherein the screen is snap-fit connected to the bottom of the grinding drum.

9. The soil sample grinding and screening device of claim 2, wherein the surface of the grinding cylinder is provided with an annular groove;

10. A soil sample grinding and screening apparatus as claimed in claim 9, wherein a pair of said support base halves are bolted or snap-fit.