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Limestone soil removal system and process

A technology for limestone and slag, applied in the field of limestone soil removal system and process, can solve the problems of high production cost of cement clinker, unable to meet the requirements of ingredients, unable to effectively control the quality of cement products, etc. Cost reduction and better adaptability

Pending Publication Date: 2022-02-01
清水河蒙西建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The raw ore mined from limestone contains a large amount of soil clods and interlayer stones. During the firing of cement clinker, the soil layer in the limestone affects the cao content of cement clinker limestone, which in turn causes the quality of cement products to be ineffective. Therefore, in the limestone mining process, it is necessary to peel off the interlayer soil in a large area, which cannot meet the batching requirements. It is also necessary to purchase 50% limestone to meet the production batching requirements, resulting in very high cement clinker production costs.

Method used

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  • Limestone soil removal system and process
  • Limestone soil removal system and process

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Experimental program
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Effect test

Embodiment 1

[0021] Embodiment 1: as figure 1 As shown, the limestone soil removal system includes a raw material silo 1, a vibrating feeder 2, a bar screen 3, a finished product crusher 4, a soil removal crusher 5, a vibrating sorting screen 6, a finished product storehouse 7, and a slag storehouse 8. There is a vibrating feeder 2 on the outlet of the raw material bin 1. The vibrating feeder 2 adopts frequency conversion speed regulation, and the feeding is stable and controllable. The feeding amount is 600-1400 tons / hour; Bar screen 3 is installed under the discharge port of 2. Bar screen 3 adopts three-stage screening, the effective length is 6 meters, and the bar gap is adjustable from 80 to 120mm. It can be adjusted according to the particle size of raw materials, and the effective screening capacity is 1500 tons / hour. , the sieve net rate is above 99%; the outlet of the oversize material on the bar sieve 3 is connected with the feed port of the finished product crusher 4, the materia...

Embodiment 2

[0022] Embodiment 2: as figure 2 As shown, the limestone soil removal system includes a raw material silo 1, a vibrating feeder 2, a bar screen 3, a finished product crusher 4, a soil removal crusher 5, a vibrating sorting screen 6, a finished product storehouse 7, and a slag storehouse 8; its overall structure is the same as embodiment 1, and its difference is that it also includes a distribution tee 14, placed above the feed inlet of the distribution tee 14 at the discharge port of the preliminary screening conveyor belt 10, and divides A discharge port of the material tee 14 is communicated with the feed port of the soil removal crusher 5; another discharge port of the material distribution tee 14 is placed above the mixing conveyor belt 11; There are gate valves 15 on the discharge ports, which can adjust the process according to the size of the material under the bar screen 3 in actual production, stop using the soil removal crusher 5, and directly use the vibrating sort...

Embodiment 3

[0023] Embodiment 3: limestone desoiling process, it comprises the steps,

[0024] Step 1, once sieved, the mixed material is sieved once using rod sieve 3,

[0025] Step 2, crushing, put the material greater than 120mm selected by the rod sieve in step 1 into the finished product crusher 4 and crush it into the finished product warehouse; put the material less than or equal to 120mm selected in the step 1 into Soil removal crusher 5 is crushed;

[0026] Step 3, secondary screening, using the vibrating sorting screen 6 to carry out secondary screening on the mixed material crushed by the soil removing crusher 5, and after the secondary screening by the vibrating sorting screen 6, the obtained material larger than 5mm will enter the finished product Repository 7, after secondary screening by vibrating sorting sieve 6, the obtained materials less than or equal to 5 mm are put into muck reservoir 8.

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Abstract

The invention discloses a limestone soil removal system and process. The limestone soil removal system comprises a raw material bin, a vibrating feeder, a bar screen, a finished product crusher, a soil removal crusher, a vibrating separating screen, a finished product warehouse and a muck warehouse. Limestone mineral aggregate is mechanically treated, and through primary screening, crushing, secondary screening and the like, soil blocks, interlayer stones and other soil clamping layers in the limestone mineral aggregate are crushed and then screened, the soil blocks and the interlayer stones in the limestone mineral aggregate are screened out, the soil removal efficiency is 99% or above, the CaO content in the limestone is increased by about 4%, and the limestone cost is reduced. The processed limestone can be used as a cement clinker raw material or used in concrete as an aggregate, and the production cost of the concrete aggregate can be reduced.

Description

Technical field: [0001] The invention relates to the field of building material production, in particular to a limestone soil removal system and process. Background technique: [0002] Limestone is an important building material, usually used as one of the main raw materials of cement and the aggregate of concrete. [0003] The raw ore mined from limestone contains a large amount of soil clods and interlayer stones. During the firing of cement clinker, the soil layer in the limestone affects the cao content of cement clinker limestone, which in turn causes the quality of cement products to be ineffective. Therefore, in the limestone mining process, it is necessary to peel off the interlayer soil in a large area, which cannot meet the batching requirements. It is also necessary to purchase 50% limestone to meet the production batching requirements, resulting in very high cement clinker production costs. Inclusions in limestone can adversely affect concrete strength, workabil...

Claims

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Application Information

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IPC IPC(8): B02C21/00B02C23/02B02C23/14B02C23/00
CPCB02C21/00B02C23/02B02C23/14B02C23/00
Inventor 段俊刚秦福在王福春
Owner 清水河蒙西建材有限公司
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