Wet carbide slag stockpiling and feeding system

Abstract

The utility model belongs to the technical field of material conveying equipment, and particularly relates to a wet carbide slag stockpiling and feeding system which comprises a feeding and discharging unit, a transferring unit, a stockpiling unit and a discharging and feeding unit. The feeding and discharging unit is located on the periphery of the stockpiling unit, and the feeding and discharging unit is located on the inclined lower portion of the transferring unit. The discharging and feeding unit is located under the stockpiling unit and communicates with the stockpiling unit. And the feeding and discharging unit is communicated with the stockpiling unit through the transfer unit. According to the wet carbide slag stockpiling and feeding system, stockpiling and feeding are conducted through potential difference and the belt, and the stockpiling and feeding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to material conveying equipment technical field, concretely relates to a kind of wet electric stone residue stockpiling feeding system. BACKGROUND

[0002] Electric stone residue is waste residue with calcium hydroxide as main component generated after obtaining acetylene gas by hydrolysis of calcium carbide, and currently, 300kg of acetylene gas can be generated by adding water to 1t of calcium carbide, and 10t of electric stone residue slurry with solid content of about 12% is generated simultaneously;Since the specific gravity of generated electric stone residue slurry is large, it is seriously polluted as waste, and resources are wasted.In view of the fact that the main component of electric stone residue slurry is calcium hydroxide, electric stone residue slurry generated in calcium carbide plant is transported to chlor-alkali enterprise to produce PVC, which not only has low raw material price, but also realizes comprehensive utilization of waste.

[0003] Currently, chlor-alkali enterprise transports externally purchased electric stone residue to plant for unloading by truck, and after unloading, it is stored by forklift;When discharging, forklift is used to shovel material into feeding port to enter feeding belt, which can realize conveying and feeding of electric stone residue, but has the following defects:(1) unloading, stacking and feeding by forklift are mechanical stacking and feeding, and the feeding efficiency is low, and it is difficult to realize stacking and feeding of a large amount of raw materials for large chlor-alkali enterprise;(2) when forklift unloads and feeds and transports, manual operation is required, and electric stone residue is solid waste, so that the operator transports in dust environment, which is harmful to health. CONTENT OF UTILITY MODEL

[0004] In order to solve the above technical problem of low calcium carbide feeding efficiency, the utility model provides a kind of wet electric stone residue stockpiling feeding system.

[0005] The wet electric stone residue stockpiling feeding system provided by the utility model utilizes height difference to stack and feed, and improves stacking and feeding efficiency.

[0006] The technical scheme adopted by the utility model is specifically:

[0007] A kind of wet electric stone residue stockpiling feeding system, including feeding and unloading unit, transfer unit, stockpiling unit and discharging and feeding unit;The feeding and unloading unit is located around the stockpiling unit, and the feeding and unloading unit is located obliquely below the transfer unit;The discharging and feeding unit is located below the stockpiling unit and communicates with the stockpiling unit;The feeding and unloading unit communicates with the stockpiling unit through the transfer unit.

[0008] Further limited, the feeding and unloading unit includes feeding and unloading hopper and feeding conveying component;The feeding and unloading hopper is located around the stockpiling unit, and the feeding conveying component is located below the feeding and unloading hopper, and the feeding and unloading hopper communicates with the transfer unit through the feeding conveying component.

[0009] Further limited, the feeding conveying component includes a feeding belt and a first transfer belt; the feeding belt is horizontally placed below a feeding discharge hopper, and the first transfer belt is obliquely placed, one end of the first transfer belt is communicated with the feeding belt, and the other end of the first transfer belt is communicated with a transfer unit.

[0010] Further limited, the transfer unit includes a transfer platform, a transfer discharge device and a second transfer belt; the transfer discharge device is arranged on the transfer platform, the first transfer belt is communicated with a stacking unit through the transfer discharge device and the second transfer belt.

[0011] Further limited, the stacking unit includes a stacking shed and a distributing belt arranged in the stacking shed, the second transfer belt is communicated with the distributing belt; the distributing belt is further provided with a distributing discharger; and the discharging and feeding unit is located below the stacking shed and is communicated with the inside of the stacking shed.

[0012] Further limited, the distributing discharger is multiple and is uniformly distributed along the conveying direction of the distributing belt.

[0013] Further limited, the discharging and feeding unit includes a discharging discharge device and a discharging and feeding belt; a discharging port is formed on the bottom surface of the stacking shed, and the discharging port is communicated with the discharging and feeding belt through the discharging discharge device.

[0014] Further limited, the discharging port is multiple, the multiple discharging ports are distributed in a matrix manner on the bottom surface of the stacking shed, and the discharging discharge device is multiple and is arranged in one-to-one correspondence with the multiple discharging ports.

[0015] Further limited, the wet calcium carbide slag stacking and feeding system further includes a grab crane arranged in the stacking shed and below the distributing belt, and the grab crane slides in the horizontal direction and the longitudinal direction in the stacking shed.

[0016] Further limited, slide rails are arranged on the opposite inner walls of the stacking shed respectively, a suspension beam is arranged below the distributing belt in the stacking shed, two ends of the suspension beam are correspondingly located in the slide rails and move along the axial direction of the slide rails, and the grab crane is arranged on the suspension beam and moves along the axial direction of the suspension beam.

[0017] The wet calcium carbide slag stacking and feeding system has the following beneficial effects:

[0018] 1. The wet calcium carbide slag stacking and feeding system utilizes the height difference to discharge and feed the calcium carbide slag raw materials stacked in the stacking shed, and improves the stacking and feeding efficiency.

[0019] 2. The wet calcium carbide slag stacking and feeding system is provided with a grab crane in the stacking shed for transfer, and a discharging discharge device with an arch breaking device is provided for discharging, so that the clogging caused by the calcium carbide slag can be prevented.

[0020] 3. This utility model utilizes a material distributor and a material conveyor belt to evenly distribute and pile carbide slag on a platform inside the stacking shed. Compared with the uneven zoning and piling of traditional forklifts, this increases the contact area between carbide slag and air, reduces the moisture content in the wet carbide slag raw material, and ensures that the moisture content of the carbide slag meets the requirements of subsequent production.

[0021] 4. This utility model also utilizes a grab crane to achieve lateral and longitudinal movement on the horizontal surface within the stacking shed. On one hand, the grab crane flattens the wet carbide slag on a platform, increasing the contact area between the wet carbide slag and the air, thus enabling the drying of newly arrived wet carbide slag within the stacking shed and ensuring that the moisture content of the carbide slag meets the usage requirements. On the other hand, the grab crane also mixes the newly arrived wet material with the long-stored dry material, achieving uniform moisture content. Through drying and mixing, the moisture content of the wet carbide slag is reduced, thereby lowering the energy consumption for subsequent drying. Attached Figure Description

[0022] Figure 1 This is a top view of the stacking and feeding system of this utility model;

[0023] Figure 2 This is a schematic diagram of the raw material transfer platform of this utility model;

[0024] Figure 3 This is a front view schematic diagram of the transfer platform and storage shed of this utility model;

[0025] Figure 4 for Figure 3 Left side view of the transshipment platform;

[0026] Figure 5 for Figure 3 Side view of the middle storage shed on the right side;

[0027] in:

[0028] 1—Storage shed; 2—Feeding and unloading hopper; 3—Feeding belt; 4—First transfer belt; 5—Transfer platform; 6—Second transfer belt; 7—Transfer unloader; 8—Paper distribution belt; 9—Paper distribution device; 10—Grab crane; 11—Discharge port; 12—Discharge unloader; 13—Suspension beam; 14—Discharge and loading belt. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0030] Example 1

[0031] The application discloses a wet electric slag stockpiling feeding system which comprises a feeding and discharging unit, a transfer unit, a stockpiling unit and a discharging and feeding unit.

[0032] Referring to Figure 1 and Figure 2 , the feeding and discharging unit comprises a feeding and discharging hopper and a feeding conveying component; the feeding and discharging hopper is located around the stockpiling unit, the feeding conveying component is located below the feeding and discharging hopper, and the feeding and discharging hopper is communicated with the transfer unit through the feeding conveying component.

[0033] In the embodiment, the feeding conveying component comprises a feeding belt and a first transfer belt; the feeding belt is horizontally placed below the feeding and discharging hopper, and the first transfer belt is obliquely placed, one end of the first transfer belt is communicated with the feeding belt, and the other end of the first transfer belt is communicated with the transfer unit.

[0034] Referring to Figure 3 , the transfer unit comprises a transfer platform, a transfer discharger and a second transfer belt; the transfer discharger is arranged on the transfer platform, and the first transfer belt is communicated with the stockpiling unit through the transfer discharger and the second transfer belt.

[0035] In the embodiment, the stockpiling unit comprises a stockpile shed and a distributing belt arranged in the stockpile shed, and the second transfer belt is communicated with the distributing belt; the distributing belt is further provided with a distributing distributor; and the discharging and feeding unit is located below the stockpile shed and is communicated with the inside of the stockpile shed.

[0036] Referring to Figure 4 , in the embodiment, the transfer platform is multiple and is located on the ground; the multiple transfer platforms are sequentially communicated through the arranged belts; the transfer dischargers are arranged on the transfer platforms except the first transfer platform, and the transfer dischargers are respectively located on the belts; the feeding belt is communicated with the belt on the first transfer platform through the first transfer belt; the remaining transfer platforms are sequentially communicated through the belts; and each transfer discharger is communicated with the distributing belt in the stockpile shed through the second transfer belt.

[0037] Referring to Figure 5 , in the embodiment, the distributing belt is arranged in the length direction of the stockpile shed, the transfer discharger is located below the distributing belt, and the second transfer belt is obliquely arranged.

[0038] In the embodiment, the distributing distributor is multiple and is uniformly distributed along the conveying direction of the distributing belt.

[0039] In the embodiment, the discharging and feeding unit comprises a discharging and unloading device 12 and a discharging and feeding belt 14; a discharging port 11 is formed on the bottom surface of the stack shed 1, and the discharging port 11 is communicated with the discharging and feeding belt 14.

[0040] In the implementation, the stack shed 1 is a frame structure. The cloth belt 8 is located at the upper position of the stack shed 1.

[0041] Referring to Figure 5 , the discharging port 11 is a plurality of, and the plurality of discharging ports 11 are distributed in a matrix form on the bottom surface of the stack shed 1. The discharging and unloading device 12 is a plurality of, and is arranged in one-to-one correspondence with the plurality of discharging ports 11.

[0042] Specifically, the transfer unloading device 7 and the cloth distributing device 9 are both plow unloading devices.

[0043] Specifically, the discharging and unloading device 12 is a spiral unloading device.

[0044] Further preferably, an arch breaking device and a rapping device are further arranged in the discharging and unloading device 12. The arch breaking device is a triangular pyramid with the tip pointing upward, and the rapping device is arranged in the discharging and unloading device 12 and above the arch breaking device. This is because the stored carbide slag may be caked due to long storage time. In order to prevent the discharging port and the discharging and unloading device 12 from being blocked when discharging from the stack shed 1, the rapping device vibrates the carbide slag when the carbide slag falls into the discharging and unloading device 12, and then the arch breaking device breaks and crushes the caked carbide slag, thereby accelerating the discharging.

[0045] Embodiment 2

[0046] The wet carbide slag stacking and feeding system provided in the embodiment further comprises a grab crane 10 arranged in the stack shed 1 and below the cloth belt 8. The grab crane 10 slides in the horizontal direction and the longitudinal direction in the stack shed 1. The grab crane 10 is an anti-explosion bridge type grab crane.

[0047] In the embodiment, a suspension beam 13 is arranged below the cloth belt 8 in the stack shed 1. The axial direction of the suspension beam 13 is perpendicular to the conveying direction of the cloth belt 8. The opposite inner walls of the stack shed 1 are respectively provided with slide rails. The axial direction of the slide rails is parallel to the conveying direction of the cloth belt 8. The two ends of the suspension beam 13 are respectively located in the slide rails and move horizontally along the axial direction of the slide rails, that is, the suspension beam 13 (the grab crane 10) moves horizontally in the horizontal plane of the stack shed 1. The grab crane 10 is arranged on the suspension beam 13 and moves along the axial direction of the suspension beam 13, that is, the grab crane 10 moves longitudinally in the horizontal plane of the stack shed 1.

[0048] In this embodiment, the grab crane 10 realizes transverse movement and longitudinal movement on the horizontal plane in the stack shed 1, on one hand, and through the grab crane, the wet carbide slag is stacked on a platform and flattened, the contact area of the wet carbide slag and air is increased, the airing function of the newly-incoming wet carbide slag in the stack shed 1 is realized, and the moisture in the carbide slag is ensured to meet the use requirement; on the other hand, the newly-incoming wet material and the dry material placed for a long time are mixed through the grab crane, and the moisture is homogenized; through airing and mixing, the moisture in the wet carbide slag is reduced, and the energy consumption of subsequent drying is reduced.

[0049] Embodiment 3

[0050] In this embodiment, on the basis of Embodiment 1 and Embodiment 2, the operation points of the feeding and discharging hopper 2, the feeding belt 3, the first transfer belt 4, the second transfer belt 6, the transfer discharger 7, the distributing belt 8, the distributing distributor 9, the grab crane 10, the discharging discharger 12 and the discharging and feeding belt 14 are arranged in the central control room (i.e. the DCS control room) of the calcium carbide production, the work of each device adopts frequency conversion speed regulation, the discharging, rotation, stacking and discharging and feeding are all automatically controlled, the central control room issues a command, the stacking and feeding are fully automatically realized, the health of the operator is ensured, and the work efficiency is improved.

[0051] The working process of the utility model will be described below by taking the specific stacking and feeding of the carbide slag as an example.

[0052] The feeding amount of the wet carbide slag is 7000 tons / day, in order to meet the requirement, the equipment is designed as follows.

[0053] (1) eight horizontally arranged feeding and discharging hoppers 2 are arranged, and the feeding and discharging hoppers 2 are arranged below the feeding belts 3. The feeding and discharging hoppers 2 and the feeding belts 3 are both located below the ground.

[0054] (2) the transfer platforms 5 are three, and are all located on the ground. The three transfer platforms 5 are sequentially connected through the belts, the transfer dischargers 7 are arranged on the second transfer platform 5 and the third transfer platform 5 respectively, and the transfer dischargers 7 are respectively located on the belts. The feeding belt 3 is connected with the belt on the first transfer platform 5 through the first transfer belt 4.

[0055] (3) since the transfer dischargers 7 are two, the second transfer belts 6 are two, and the distributing belts 8 are two, so as to ensure that the transfer dischargers 7 are connected with the distributing belts 8 through the second transfer belts 6.

[0056] (4) the distributing distributors 9 are five, and are uniformly arranged along the conveying direction of the distributing belts 8. The length of the distributing belts 8 is slightly shorter than the length of the horizontal direction of the stack shed 1.

[0057] (5) The discharge outlet 11 is 14, according to the matrix distribution, the discharge unloader 12 is 14, and is matched with the discharge outlet 11.

[0058] (6) Since the discharge unloader 12 is three rows, a scraper machine is further arranged below each row of the discharge unloader 12, and the three scraper machines are gathered on the discharge feeding belt 14 for feeding.

[0059] The conveying capacity of the feeding belt 3 is 1400t / h, and the width is 1.6m; the conveying capacity of the first transfer belt 4 is 1400t / h, and the width is 1.4m; the conveying capacity of the second transfer belt 6 is 1400t / h, and the width is 1.4m; the conveying capacity of the scraper machine is 220t / h; the conveying capacity of the discharge feeding belt 14 is 500t / h, and the width is 1.2m; and the lifting capacity of the explosion-proof bridge type grab crane 10 is 20t.

[0060] The length of the stack shed 1 is 66m, and the width is 33m; the height of the transfer platform 5 is 11m; the inclination angle of the first transfer belt 4 is 23.2°; and the inclination angle of the second transfer belt 6 is 13°.

[0061] Specifically, the purchased wet calcium carbide slag raw material is transported to the eight feeding hoppers 2 by a vehicle for unloading, is unloaded from the feeding hoppers 2 to the feeding belt 3, is then transferred to the belt on the transfer platform 5 by the first transfer belt 4, is divided into two paths by the transfer unloader 7, is conveyed to the distribution belt 8 in the stack shed 1 by the second transfer belt 6, and is finally uniformly unloaded to the stack shed 1 by the five distribution unloaders 9 for stacking and storing.

[0062] When discharging and feeding, the discharge unloader 12 is started, the moisture qualified calcium carbide slag in the stack shed 1 falls into the discharge unloader 12 through the discharge outlet 11, is broken arch, is unloaded to the corresponding three scraper machines in three paths, is gathered on a total scraper machine, and is finally conveyed to the discharge feeding belt 14 and lifted to the wet slag intermediate warehouse for drying.

[0063] The above is one specific embodiment of the wet calcium carbide slag stacking and feeding system, but the technical scheme of the utility model is not limited to this. When the wet calcium carbide slag is actually stacked and fed, the stack shed, the transfer platform, the unloader and the conveying belt are designed according to the feeding amount and the discharging and feeding amount of the raw material to ensure that the production requirements are met.

[0064] In the embodiment, the raw material is lifted to a certain height of the stack shed by the upper and lower position difference, then the wet calcium carbide slag raw material is uniformly laid into the stack shed, the moisture is dispersed, and finally the raw material is discharged by the upper and lower position difference, which reduces the use of a shovel truck to stack the raw material in the stack shed, greatly increases the stacking height, and further increases the raw material storage capacity.

[0065] The utility model discloses a central control room of calcium carbide production is connected to the above each belt and unloader etc., realizes the unmanned operation of the scene, adopts the automation control in whole process, realizes the full automation of feeding stockpiling, discharging and feeding, and further improves work efficiency.

[0066] Obviously, the above-described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor should belong to the protection scope of the utility model.

Claims

1. A wet carbide slag stockpiling loading system, characterised in that, The system comprises a feeding and discharging unit, a transfer unit, a stacking unit and a discharging and feeding unit; the feeding and discharging unit is located around the stacking unit, and the feeding and discharging unit is located obliquely below the transfer unit; the discharging and feeding unit is located directly below the stacking unit and communicates with the stacking unit; the feeding and discharging unit communicates with the stacking unit through the transfer unit.

2. The wet red mud stockpiling feeding system of claim 1, wherein, The feeding and discharging unit comprises a feeding and discharging hopper (2) and a feeding conveying component; the feeding and discharging hopper (2) is located around the stacking unit, and the feeding conveying component is located below the feeding and discharging hopper (2); the feeding and discharging hopper (2) communicates with the transfer unit through the feeding conveying component.

3. The wet red mud stockpiling feeding system of claim 2, wherein, The feeding conveying component comprises a feeding belt (3) and a first transfer belt (4); the feeding belt (3) is horizontally placed below the feeding and discharging hopper (2), and the first transfer belt (4) is obliquely placed; one end of the first transfer belt (4) communicates with the feeding belt (3), and the other end of the first transfer belt (4) communicates with the transfer unit.

4. The wet red mud stockpiling feeding system of claim 3, wherein, The transfer unit comprises a transfer platform (5), a transfer discharger (7) and a second transfer belt (6); the transfer discharger (7) is arranged on the transfer platform (5); the first transfer belt (4) communicates with the stacking unit through the transfer discharger (7) and the second transfer belt (6).

5. The wet red mud stockpiling and feeding system of claim 4, wherein, The stacking unit comprises a stacking shed (1) and a distributing belt (8) arranged in the stacking shed (1); the second transfer belt (6) communicates with the distributing belt (8); the distributing belt (8) is further provided with a distributing distributor (9); the discharging and feeding unit is located below the stacking shed (1) and communicates with the inside of the stacking shed (1).

6. The wet slurry stacking and feeding system according to claim 5, wherein, The distributing distributor (9) is multiple and uniformly distributed along the conveying direction of the distributing belt (8).

7. The wet slurry stacking and feeding system according to claim 6, wherein, The discharging and feeding unit comprises a discharging discharger (12) and a discharging and feeding belt (14); a discharging port (11) is formed on the bottom surface of the stacking shed (1); the discharging port (11) communicates with the discharging and feeding belt (14) through the discharging discharger (12).

8. The wet slurry stacking and feeding system according to claim 7, characterized in that, The discharging port (11) is multiple; the multiple discharging ports (11) are distributed in a matrix manner on the bottom surface of the stacking shed (1); the discharging discharger (12) is multiple and corresponds to the multiple discharging ports (11).

9. A wet red mud stockpiling system according to any one of claims 5 to 8, wherein, The wet calcium carbide slag stacking and feeding system further comprises a grab crane (10) arranged in the stacking shed (1) and located below the distributing belt (8); the grab crane (10) slides in the horizontal direction and the vertical direction in the stacking shed (1).

10. The wet red mud stockpiling system of claim 9, wherein, The opposite inner walls of the stacking shed (1) are respectively provided with sliding rails; a suspension beam (13) is arranged below the distributing belt (8) in the stacking shed (1); the two ends of the suspension beam (13) are respectively located in the sliding rails and move along the axial direction of the sliding rails; the grab crane (10) is arranged on the suspension beam (13) and moves along the axial direction of the suspension beam (13).

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