Conveying system for irregular materials in limited operation space

Abstract

The utility model belongs to the technical field of iron and steel smelting, and particularly relates to a conveying system for irregular materials in a limited operation space, which comprises a compound crusher, a Z-shaped bucket elevator, a vertical storage bin and a negative pressure suction and discharge vehicle, an inlet of the compound crusher is communicated with an outlet of the lime blanking bin through a star-shaped feeder; an outlet of the composite crusher is communicated with an inlet of the Z-shaped bucket elevator through a sealing cover, an outlet of the Z-shaped bucket elevator is located at a top opening of the vertical storage bin, a bottom outlet of the vertical storage bin is connected with the negative pressure suction and discharge vehicle through a hose, and material conveying is completed through coarse crushing, lifting conveying, storage and negative pressure suction and discharge. The lime screening device has the beneficial effects that a combined scheme of coarse crushing, lifting and conveying, storage and negative pressure suction and discharge is adopted for lime screening materials, so that the limitation in a limited operation space is overcome; the whole conveying process is good in sealing performance and free of flying dust, and the relevant requirements of the environmental protection department for the production environment are met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of steel smelting technology, especially relates to a conveying system of irregular material in limited operation space. BACKGROUND

[0002] In steel smelting production, lime screen discharge and fluorite are mixed at a proportion of 9:1 to manufacture KR desulfurization powder agent for application to hot metal desulfurization, which greatly reduces the desulfurization cost compared with magnesium powder composite injection method. Therefore, in the KR desulfurization modification, the lime for manufacturing KR desulfurization powder agent is mostly the lime screen discharge of self-production process. Since the east side of the lime screen discharge receiving position is adjacent to the torpedo tank hot metal transportation railway line, and the south side is a low-voltage distribution room, the space is very narrow, the receiving door is only a passage of about 5 meters wide, and the conventional belt gallery conveying cannot realize receiving and conveying in terms of position and space, so it is necessary to redesign the conveying process of irregular material in limited operation space to meet the requirements.

[0003] The Chinese utility model patent with application number 202111035957.6 discloses an application method of blowing assisting technology in a dust removal system. The blowing assisting device of the dust removal system includes a dust hopper, a blowing pipe assembly is fixedly connected to one side of the dust hopper, an air compressor is arranged at one end of the blowing pipe assembly, a dust discharge pipe is fixedly connected to the bottom end of the dust hopper, a dust discharge valve is arranged at the bottom end of the dust discharge pipe, and a rubber hose is fixedly connected to the bottom end of the dust discharge pipe adjacent to the dust discharge valve. After the blowing pipe assembly utilizing compressed air is added to the bottom of the dust hopper of the dust removal system, the problem of dust suspension is avoided, the problem that dust cannot be transported by a negative pressure suction and discharge vehicle is solved, the secondary pollution phenomenon during dust discharge by an open-type tipping car is eliminated, and the labor intensity is reduced. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a conveying system of irregular material in limited operation space, which overcomes the shortcomings of the prior art, adopts a combination scheme of coarse crushing + lifting conveying + storage + negative pressure suction and discharge for lime screen discharge, and meets the environmental protection requirements by overcoming the limitation in limited operation space.

[0005] To achieve the above-mentioned purpose, the utility model realizes the following technical scheme:

[0006] The utility model provides a conveying system of irregular material in limited operation space, including compound breaker, Z type bucket elevator, vertical storage bin and negative pressure suction truck, compound breaker sets up below lime discharge bin, and the import of compound breaker is connected with the export of lime discharge bin through star feeder, the export of compound breaker and the import of Z type bucket elevator are connected through closed cover, and the export of Z type bucket elevator is located at the top opening of vertical storage bin, and the bottom export of vertical storage bin is connected with negative pressure suction truck through hose, and the conveying of material is completed through coarse crushing, lifting conveying, storage and negative pressure suction, and the problem of insufficient space below lime discharge bin is overcome.

[0007] Further, the model of the compound breaker is HX1060, and the matched screen mesh has a diameter of 3mm.

[0008] Further, the model of the negative pressure suction truck is ZLQ53, and the negative pressure pump and cyclone dust collector are arranged on the truck.

[0009] Further, the model of the Z type bucket elevator is HY-ZD-5L, the lifting height is 5.2m, and the translation distance of the inlet and outlet is 3.3m.

[0010] Further, the vertical storage bin is arranged on a support structure frame, a star unloader, a wind valve or a dust discharging valve are arranged at the bottom outlet of the vertical storage bin, and the volume of the vertical storage bin is matched with the volume of the negative pressure suction truck.

[0011] Further, a dust removal cover is arranged at the top inlet of the vertical storage bin, the dust removal cover is connected with a dust removal pipeline and a dust removal fan, and an electric vibrator is arranged on the side wall of the vertical storage bin.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1) the combination scheme of coarse crushing + lifting conveying + storage + negative pressure suction is adopted for the lime screen discharge, the irregular lime screen discharge is coarsely broken to meet the particle size requirement of the negative pressure suction, the 15 cubic meter negative pressure suction truck is used for receiving the material, and the negative pressure suction can better overcome the restriction in the limited operation space and improve the material conveying efficiency.

[0014] 2) the whole conveying process is good in sealing property and free of dust, and meets the relevant requirements of the environmental protection department on the production environment. DRAWINGS

[0015] Figure 1 is a process flow schematic diagram of the utility model embodiment.

[0016] In the figure: 1 - white lime discharge bin, 2 - composite crusher, 3 - Z type bucket elevator, 4 - vertical storage bin, 5 - negative pressure suction truck, 6 - star feeder, 7 - hose, 8 - star unloader, 9 - dust hood, 10 - dust removal pipeline, 11 - dust removal fan, 12 - electric vibrator. DETAILED DESCRIPTION

[0017] The technical solutions of the utility model will be described clearly and completely in combination with specific embodiments below, obviously, the described embodiments are some embodiments of the utility model, rather than all the embodiments.

[0018] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the specific embodiments needed in the specific embodiment or prior art description will be briefly introduced below, obviously, the specific embodiments described below are some embodiments of the utility model, and other specific embodiments can also be obtained by those skilled in the art without creative labor on the premise of not paying creative labor.

[0019] The components of the embodiments of the utility model described and shown in the specific embodiments herein can be arranged and designed in countless different configurations. Therefore, the following detailed description of the embodiments of the utility model provided in the specific embodiments is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model.

[0020] See Figure 1 It is an embodiment process flow diagram of the utility model of a conveying system for irregular materials in a limited working space, comprising a composite crusher 2, a Z type bucket elevator 3, a vertical storage bin 4 and a negative pressure suction truck 5, the composite crusher 2 is arranged below the white lime discharge bin 1, the inlet of the composite crusher 2 is connected with the outlet of the white lime discharge bin 1 through the star feeder 6, the outlet of the composite crusher 2 is connected with the inlet of the Z type bucket elevator 3 by a closed cover, the outlet of the Z type bucket elevator 3 is located at the top opening of the vertical storage bin 4, the bottom outlet of the vertical storage bin 4 is connected with the negative pressure suction truck 5 through the hose 7, and the conveying of the materials is completed through coarse crushing, lifting and conveying, storage and negative pressure suction. The connection between the devices is covered with a closed cover, which can avoid dust raising.

[0021] The manufacturer of the composite crusher 2 is Henan Hongxing Mining Machinery Co., Ltd., the specification model is HX1060, the matching screen diameter is 3mm, and the main parameters of the equipment are shown in Table 1.

[0022] Table 1

[0023]

[0024] The negative pressure suction and discharge vehicle 5 is produced by Jinan Zhonglu Special Vehicle Co., Ltd., and is of ZLQ53 type, and is equipped with a negative pressure pump and a cyclone dust collector, and main parameters of the equipment are shown in Table 2.

[0025] Table 2

[0026]

[0027] The Z-shaped bucket elevator 3 is produced by Xinxiang Hengyu Machinery Equipment Co., Ltd., and is of HY-ZD-5L type, and has a lifting height of 5.2 meters and a translation distance of 3.3 meters, and main parameters of the equipment are shown in Table 3.

[0028] Table 3

[0029]

[0030] The vertical storage bin 4 is arranged on the support structure frame, and is provided with a star-shaped unloader 8, an airlock valve or a dust discharging valve at a bottom outlet thereof; a volume of the vertical storage bin 4 is matched with a volume of the negative pressure suction and discharge vehicle 5. A dust hood 9 is arranged at a top inlet of the vertical storage bin 4, the dust hood is connected with a dust removal pipeline 10 and a dust removal fan 11, and is used for capturing dust at the top of the vertical storage bin 4. An electric vibrator 12 is arranged on a side wall of the vertical storage bin, and is used for solving the problem that the lime cannot fall in the vertical storage bin 4.

[0031] The utility model discloses a conveying method of irregular material in limited operation space, which is through rough crushing, lifting and conveying, storage and negative pressure suction and discharge of lime screening and discharging in turn to complete the conveying of the material, and overcomes the problem of insufficient space below the lime discharging bin.

[0032] 1) The composite crusher 2 crushes the lime discharging bin 1 to below 3mm in diameter, and the lime output of the composite crusher 2 is 10-15 tons / hour; the crushing step makes the particle size of the lime meet the requirements of the negative pressure suction and discharge vehicle 5, and the crushing step in the KR desulfurization powder preparation workshop in the conventional conveying method is advanced, and there is no energy waste;

[0033] 2) The Z-shaped bucket elevator 3 lifts and conveys the roughly crushed lime material, and the conveying capacity of the Z-shaped bucket elevator 3 is matched with the output of the composite crusher 2; the Z-shaped bucket elevator 3 first translates the lime to a position with sufficient space, and then lifts the lime into the vertical storage bin 4;

[0034] 3) negative pressure suction truck 5 will lime in vertical storage silo 4 suction, the controller will lime discharge bin 1 star feeder 6, composite crusher 2, Z type bucket elevator 3, vertical storage silo 4 star unloader 8, vertical storage silo 4 dust removal fan 11 and negative pressure suction truck 5 linkage control, negative pressure suction truck 5 suction full after retracting hose 7, negative pressure suction truck 5 will material to KR desulfurization powder preparation workshop.

[0035] When negative pressure suction truck 5 works, the suction function is by the suction of air source machinery, a certain vacuum degree is formed in the vehicle tank, pipe system, the material is sucked from the ground silo into the vehicle tank by the moving air with necessary flow rate; positive pressure discharge: the pressure feeding type pneumatic conveying is to blow the material by compressed air, the pressure of the conveying pipe is higher than the atmospheric pressure, the vehicle is equipped with air compressor (air source machinery), the air compressor discharges air into the tank, so that the air pressure in the tank is generated, the vehicle tank is built-in air storage room and fluidized bed, the airflow penetrates into the tank through the fluidized bed in the air storage room, so that the mixing ratio of air and material is increased, at the same time, the pressure in the tank is formed, and the material is discharged outward through the pipeline.

[0036] In the irregular material conveying system in the limited working space of the utility model, coarse crushing and negative pressure suction can be performed asynchronously, during the crushing time, the negative pressure suction truck 5 is used for transportation and external transportation, when the vertical storage silo 4 is filled, the composite crusher 2 is stopped, and the negative pressure suction truck 5 starts to suck the material.

[0037] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A conveying system for irregular materials within a limited working space, characterized in that, The composite crusher, Z-shaped bucket elevator, vertical storage bin and negative pressure suction truck are included, the composite crusher is arranged below the lime discharging bin, the inlet of the composite crusher is connected with the outlet of the lime discharging bin through the star feeder, the outlet of the composite crusher is connected with the inlet of the Z-shaped bucket elevator through the closed cover, the outlet of the Z-shaped bucket elevator is located at the top opening of the vertical storage bin, the bottom outlet of the vertical storage bin is connected with the negative pressure suction truck through the hose, the material conveying is completed through coarse crushing, lifting conveying, storage and negative pressure suction, and the problem of insufficient space below the lime discharging bin is solved.

2. The system for conveying irregular materials in a limited working space according to claim 1, wherein, The model of the composite crusher is HX1060, and the matched screen mesh has a diameter of 3 mm.

3. The system for conveying irregular materials in a limited working space according to claim 1, wherein, The model of the negative pressure suction truck is ZLQ53, and the negative pressure pump and cyclone dust collector are arranged on the truck.

4. The system for conveying irregular materials in a limited work space according to claim 1, wherein, The model of the Z-shaped bucket elevator is HY-ZD-5L, the lifting height is 5.2 m, and the translation distance of the inlet and outlet is 3.3 m.

5. The system for conveying irregular materials in a limited work space according to claim 1, wherein, The vertical storage bin is arranged on the support structure frame, the star discharger, airlock valve or ash discharger are arranged at the bottom outlet of the vertical storage bin, and the volume of the vertical storage bin is matched with the volume of the negative pressure suction truck.

6. The system for conveying irregular materials in a limited work space according to claim 1, wherein, A dust removal cover is arranged at the top inlet of the vertical storage bin, the dust removal cover is connected with the dust removal pipeline and dust removal fan, and the sidewall of the vertical storage bin is provided with the electric vibrator.

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