Ectopic thermal desorption repair feeding device

Abstract

The utility model relates to an ex-situ thermal desorption remediation feeding device, which belongs to the technical field of soil remediation and comprises a base, a first support and a second support are fixedly mounted at the top of the base, and an auger elevator is fixedly mounted at the top of the second support. A crushing box and a screening box are arranged at the top of each first support. According to the ex-situ thermal desorption repair feeding device, sandy soil is put into the screening box, large stones or metal in the sandy soil are screened through the screening net by means of swinging of the screening net, the screened soil enters the auger elevator through the discharging pipe, and the soil is conveyed into treatment equipment through the auger elevator. When the contaminated soil is hard soil, the contaminated soil is put into the crushing box, the crushing assembly is used for crushing the hard soil into small blocks, and therefore the small blocks can enter the auger elevator through the discharging pipe and then are conveyed into treatment equipment through the auger elevator.

Description

Technical Field

[0001] This utility model relates to the field of soil remediation technology, specifically to an ex-situ thermal desorption remediation feeding device. Background Technology

[0002] Ex-situ thermal desorption (ESD) is a technology that remediates contaminated soil by directly or indirectly heating it, causing the target pollutants to vaporize and volatilize. This technology is primarily applicable to volatile and semi-volatile organic pollutants, such as petroleum hydrocarbons, pesticides, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and mercury compounds. The contaminated soil is excavated and then heated in specialized treatment equipment, causing the organic pollutants in the soil to volatilize or decompose, thereby purifying the soil.

[0003] Before introducing contaminated soil into the treatment equipment, the soil needs to be pretreated. Pretreatment can improve the efficiency and treatment effect of the thermal desorption process. Existing feeding equipment simply transports the soil without pretreatment, which greatly affects the working efficiency of thermal desorption. Therefore, an ex-situ thermal desorption remediation feeding device is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an ex-situ thermal desorption remediation feeding device, which has the advantages of pre-treating the soil and improving the efficiency and treatment effect of the thermal desorption process. It solves the problem that existing feeding equipment simply transports the soil without pre-treatment, which greatly affects the working efficiency of thermal desorption.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an ex-situ thermal desorption remediation feeding device, comprising a base, a first bracket fixedly installed on the top of the base, a second bracket fixedly installed on the top of the base, an auger elevator fixedly installed on the top of the second bracket, a crushing box and a screening box being provided on the top of the first bracket, and a discharge pipe fixedly installed at the bottom of the crushing box and the screening box, the discharge port of the discharge pipe being connected to the inlet of the auger elevator;

[0006] The crushing box is equipped with a crushing component, the screening box is equipped with a screening screen inside, and the screening box is equipped with a splitting component connected to the screening screen.

[0007] The splitting assembly includes a support plate rotatably connected to the inner wall of the screening box. The support plate has an opening inside, and hanging plates are attached to both the left and right sides inside the opening. The opposite side of the hanging plates is fixedly connected to the screening screen. Limiting holes are opened inside the support plate on both the left and right sides of the opening. Limiting rods are fixedly connected to the surface of the hanging plates, and the bottom end of the limiting rods passes through the limiting holes. A first motor is fixedly installed on the right side of the screening box, and the first motor is fixedly connected to the support plate through a transmission gearbox.

[0008] Furthermore, the crushing assembly includes a gearbox fixedly connected to the surface of the crushing chamber, a second motor fixedly connected to the surface of the gearbox, the output shaft of the second motor connected to the input shaft of the gearbox, the output shaft of the gearbox extending into the interior of the crushing chamber and fixedly connected to a crushing roller, and the other side of the crushing roller being rotatably connected to the inner wall of the crushing chamber.

[0009] Furthermore, the gearbox is equipped with two gears that mesh with each other. Both gears are fixedly connected to a drive shaft. The output shaft of the second motor is fixed to the drive shaft of one of the gears. One end of the two drive shafts extends into the crushing box and is fixedly connected to the axis of the crushing roller.

[0010] Furthermore, a feeding plate is fixedly installed on the inner wall of the crushing box and above the crushing roller. The feeding plate is inclined to the center on all four sides, and a feeding hole is opened inside the feeding plate.

[0011] Furthermore, the hanging plate is L-shaped, and a lifting ring is fixedly connected to the top of the hanging plate.

[0012] Furthermore, the screening mesh is hemispherical, and the top of the screening mesh is missing.

[0013] Furthermore, the top of the screening box is missing, and a box cover is hinged to the top of the screening box.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] This ex-situ thermal desorption remediation feeding device involves feeding sandy soil into a screening box. The oscillating screen separates large stones or metal particles from the soil. The screened soil then flows through a feed pipe into a screw conveyor, which transports it to the treatment equipment. When the contaminated soil is hard, it is fed into a crushing box where crushing components break it into smaller pieces. These smaller pieces then flow through a feed pipe into the screw conveyor, which then transports them to the treatment equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This utility model Figure 1 Enlarged view of a partial structure of section A in the middle;

[0018] Figure 3 This is a schematic diagram of the connection structure between the second motor and the gearbox of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the screening mesh and the hanging plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the support plate structure of this utility model.

[0021] In the diagram: 1. Base, 2. First support, 3. Second support, 4. Screw hoist, 5. Crushing box, 6. Screening box, 7. Feed pipe, 8. Crushing assembly, 801. Gearbox, 802. Second motor, 803. Crushing roller, 9. Screening screen, 10. Splitting assembly, 101. Support plate, 102. Opening, 103. Hanging plate, 104. Limiting hole, 105. Limiting rod, 106. First motor, 11. Feed plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 5 The ex-situ thermal desorption repair feeding device in this embodiment includes a base 1, a first support 2 fixedly installed on the top of the base 1, a second support 3 fixedly installed on the top of the base 1, an auger elevator 4 fixedly installed on the top of the second support 3, a crushing box 5 and a screening box 6 are provided on the top of the first support 2, and a discharge pipe 7 is fixedly installed at the bottom of the crushing box 5 and the screening box 6. The discharge port of the discharge pipe 7 is connected to the inlet of the auger elevator 4.

[0024] The crushing box 5 is equipped with a crushing component 8, the screening box 6 is equipped with a screening screen 9 inside, the screening box 6 is equipped with a splitting component 10 connected to the screening screen 9, the top of the screening box 6 is missing, and the top of the screening box 6 is hinged with a box cover, which can be opened to remove the screening screen 9 from the screening box 6.

[0025] Sandy soil is fed into the screening box 6, where the oscillating screen 9 separates large stones or metal particles. The screened soil then enters the auger elevator 4 through the feed pipe 7, which transports it to the treatment equipment. When the contaminated soil is hard, it is fed into the crushing box 5, where the crushing components 8 break it into smaller pieces. These smaller pieces then enter the auger elevator 4 through the feed pipe 7 and are transported to the treatment equipment.

[0026] The splitting assembly 10 includes a support plate 101 rotatably connected to the inner wall of the screening box 6. An opening 102 is provided inside the support plate 101. Hanging plates 103 are attached to both the left and right sides of the opening 102. The hanging plates 103 are L-shaped, and a lifting ring is fixedly connected to the top of each hanging plate 103, allowing for easy lifting. The opposite side of the hanging plate 103 is fixedly connected to a screening screen 9. The screening screen 9 is hemispherical, and its top is missing. Limiting holes 104 are provided inside 101 and on both the left and right sides of the opening 102. Limiting rods 105 are fixedly connected to the surface of the hanging plate 103, and the bottom end of the limiting rods 105 passes through the limiting holes 104, which can limit and stabilize the hanging plate 103. When the screening screen 9 swings, it will not be displaced. A first motor 106 is fixedly installed on the right side of the screening box 6. The first motor 106 is fixedly connected to the support plate 101 through a transmission gearbox.

[0027] The first motor 106 drives the support plate 101 to swing through the transmission gearbox. The support plate 101 drives the screening screen 9 to swing and screen the soil. When the screening is completed and large stones in the screening screen 9 need to be cleaned, the hanging ring on the hanging plate 103 is connected by the equipment, thereby moving the hanging plate 103 and the screening screen 9 out of the equipment, so as to facilitate the cleaning of stones in the screening screen 9.

[0028] The crushing assembly 8 includes a gearbox 801 fixedly connected to the surface of the crushing box 5. A second motor 802 is fixedly connected to the surface of the gearbox 801. The output shaft of the second motor 802 is connected to the input shaft of the gearbox 801. The output shaft of the gearbox 801 extends into the interior of the crushing box 5 and is fixedly connected to a crushing roller 803. The other side of the crushing roller 803 is rotatably connected to the inner wall of the crushing box 5. A feed plate 11 is fixedly installed on the inner wall of the crushing box 5 above the crushing roller 803. The four sides of the feed plate 11 are inclined towards the center, and a feed hole is opened inside the feed plate 11 to ensure that when the contaminated soil enters the crushing box 5 through the feed hole, it is between the two crushing rollers 803, which facilitates faster crushing.

[0029] The gearbox 801 contains two gears that mesh with each other. Both gears are fixedly connected to a drive shaft. The output shaft of the second motor 802 is fixed to the drive shaft of one of the gears. One end of each drive shaft extends into the crushing box 5 and is fixedly connected to the shaft of the crushing roller 803.

[0030] The second motor 802 drives two crushing rollers 803 to rotate in opposite directions via the gearbox 801. When the material enters the crushing box 5 through the feed plate 11, it will crush the hard soil through the two crushing rollers 803. The crushed soil will enter the feed pipe 7 due to gravity.

[0031] The working principle of the above embodiments is as follows:

[0032] When pretreatment of sandy soil is required, the sandy soil is fed into the screening box 6. The oscillating screen 9 separates large stones or metal from the sandy soil. The screened soil then enters the auger elevator 4 through the feed pipe 7, which transports the soil to the treatment equipment. When the contaminated soil is hard soil, it is fed into the crushing box 5. The crushing components 8 break the hard soil into small pieces, which then enter the auger elevator 4 through the feed pipe 7 and are then transported to the treatment equipment. When pretreatment of hard soil is required, the material enters the crushing box 5 through the feed plate 11. The second motor 802 drives two crushing rollers 803 to rotate in opposite directions via the gearbox 801. The crushing rollers 803 break the hard soil, and the broken soil, due to gravity, enters the feed pipe 7 and is then transported to the treatment equipment by the auger elevator 4.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ex-situ thermal desorption remediation feeding device, comprising a base (1), wherein a first bracket (2) is fixedly installed on the top of the base (1), a second bracket (3) is fixedly installed on the top of the base (1), and a screw conveyor (4) is fixedly installed on the top of the second bracket (3), characterized in that: The top of the first support (2) is provided with a crushing box (5) and a screening box (6), the bottom end of the crushing box (5) and the screening box (6) is fixedly installed with a discharging pipe (7), and the discharge port of the discharging pipe (7) is communicated with the feeding port of the auger elevator (4); A crushing assembly (8) is arranged on the crushing box (5), and a screening net (9) is arranged in the screening box (6), and a disassembly assembly (10) connected with the screening net (9) is arranged on the screening box (6); The disassembly assembly (10) comprises a support plate (101) rotatably connected with the inner wall of the screening box (6), the inside of the support plate (101) is provided with an opening (102), the left and right sides of the inside of the opening (102) are attached with a hanging plate (103), the opposite side of the hanging plate (103) is fixedly connected with the screening net (9), the inside of the support plate (101) and the left and right sides of the opening (102) are provided with limiting holes (104), the surface of the hanging plate (103) is fixedly connected with a limiting rod (105), and the bottom end of the limiting rod (105) penetrates through the limiting hole (104), and the right side of the screening box (6) is fixedly installed with a first motor (106), and the first motor (106) is fixedly connected with the support plate (101) through a transmission gear box (801).

2. The ex-situ thermal desorption remediation feed device of claim 1, wherein: The crushing assembly (8) comprises a gear box (801) fixedly connected with the surface of the crushing box (5), the surface of the gear box (801) is fixedly connected with a second motor (802), the output shaft of the second motor (802) is connected with the input shaft of the gear box (801), the output shaft of the gear box (801) extends to the inside of the crushing box (5) and is fixedly connected with a crushing roller (803), and the other side of the crushing roller (803) is rotatably connected with the inner wall of the crushing box (5).

3. The ex-situ thermal desorption remediation feed device of claim 2, wherein: The inside of the gear box (801) is provided with two gears, the two gears are meshed with each other, the inside of the two gears is fixedly connected with a transmission shaft, the output shaft of the second motor (802) is fixedly connected with the transmission shaft of one of the gears, and one end of the two transmission shafts extends to the inside of the crushing box (5) and is fixedly connected with the axis of the crushing roller (803).

4. The ex situ thermal desorption remediation feed device of claim 2, wherein: The inner wall of the crushing box (5) and above the crushing roller (803) is fixedly installed with a discharging plate (11), the four sides of the discharging plate (11) are inclined to the center, and the inside of the discharging plate (11) is provided with a discharging hole.

5. The ex-situ thermal desorption remediation feed device of claim 1, wherein: The hanging plate (103) is L-shaped, and a lifting ring is fixedly connected to the top of the hanging plate (103).

6. The ex-situ thermal desorption remediation feed device of claim 1, wherein: The screening net (9) is semispherical, and the top of the screening net (9) is missing.

7. The ex-situ thermal desorption remediation feed device of claim 1, wherein: The top of the screening box (6) is missing, and a box cover is hingedly connected to the top of the screening box (6).

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