Water adding pipe for mixing machine

Abstract

The utility model discloses a water adding pipe for a mixing machine, which belongs to the technical field of iron ore powder sintering in the metallurgical industry, solves the problem that the production efficiency is influenced due to the poor effect of the water adding pipe of the existing mixing machine, and comprises a first water adding pipe, a second water adding pipe and a third water adding pipe which are sequentially arranged from top to bottom, the first water adding pipe, the second water adding pipe and the third water adding pipe are each provided with a plurality of sprayers in the length direction. The arrangement mode of the water adding pipes is adjusted to form an arrangement and combination mode from top to bottom, the bearing capacity of accumulated materials on a water pipe steel wire rope is reduced after transformation, meanwhile, the moisture of a mixture is more stable, the uniform mixing and granulating effect is obviously improved, and the requirements of sintering machine production for the moisture and granularity of the mixture are met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to metallurgical industry iron ore powder sintering technical field, concretely relates to a water pipe for mixing machine. BACKGROUND

[0002] At present, the main problems of the mixing machine are serious material sticking, unstable water content of the mixed material and large fluctuation, which are embodied in the following aspects: first, the once mixed material cylinder has serious material sticking, the self-generated load of the cylinder operation is increased, a large amount of manpower is consumed for cleaning during the fixed repair and annual repair, the water pipe nozzle is easy to be blocked, the atomization effect is poor, and the water is not evenly added; second, the material is seriously stacked above the water pipe, which increases the bearing capacity of the water pipe and the steel wire rope, and the safety risk of personnel fixed repair and cleaning is high, and the inconsistent pipe diameter of the online use pipeline affects the water pressure and the steel wire rope bearing; third, after the peripheral concentrate ratio is gradually increased from 20% to 50%, the large proportion of fine ore sintering in the early stage is changed to large proportion of concentrate sintering. The properties of the mixed material have changed obviously, the particle size of the mixed material becomes fine, the content of the mixed material in -3mm is increased from less than 30% in the early stage to more than 40%, the air permeability is poor in the sintering process, the vertical sintering speed is reduced, and the sintered ore output is greatly affected. When the concentrate is increased to 50%, the daily output of sintered ore is only 3600-3800t. SUMMARY

[0003] The utility model aims at providing a water pipe for mixing machine to solve the problem of poor effect of the existing mixing machine water pipe affecting production efficiency.

[0004] The technical scheme of the utility model is: a water pipe for mixing machine, including first water pipe, second water pipe and third water pipe, first water pipe, second water pipe and third water pipe are sequentially arranged from top to bottom, a plurality of nozzles are respectively arranged on the length direction of first water pipe, second water pipe and third water pipe, the number of nozzles arranged on first water pipe is more than the number of nozzles arranged on second water pipe, the number of nozzles arranged on second water pipe is more than the number of nozzles arranged on third water pipe, the first nozzle arranged on second water pipe is after the last nozzle arranged on first water pipe, and the first nozzle arranged on third water pipe is after the last nozzle arranged on second water pipe.

[0005] As a further improvement of the utility model, flow meters are respectively arranged on first water pipe, second water pipe and third water pipe.

[0006] As a further improvement of the utility model, the flow meters are connected with a visual control system.

[0007] The utility model discloses a beneficial effect below: the utility model discloses the present situation of serious material sticking of mixing machine cylinder, through the transformation of water adding mode method, through first water adding pipe, second water adding pipe and third water adding pipe, water adding mode is changed into three -segmented water adding mode, sets up water adding atomizing nozzle, thereby reasonably adjusts the water adding amount of each water adding point of batching chamber and mixing machine, and the water adding mode is optimized, makes water adding mode more reasonable, meets the requirement that mixing machine adds water, mixes uniformly, and makes into granules, makes the material motion mode in mixing machine interior tend to more benefit mixing uniformly, and the rolling mode of balling, simultaneously solve the problem of material sticking of mixing machine cylinder.

[0008] The utility model discloses through to the arrangement of water adding pipe, adjustment, form from top to bottom arrangement combination mode, after the transformation, alleviate the bearing capacity of water pipe steel wire rope of material accumulation on the top of water adding pipe, make the moisture of mixed material more stable simultaneously, and the mixing granulation effect improves obviously, satisfy the requirement of sintering machine production to mixed material moisture, granularity. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is whole structure schematic diagram of the utility model.

[0010] In the drawing: 1 - first water adding pipe;2 - second water adding pipe;3 - third water adding pipe;4 - flowmeter;5 - nozzle. SPECIFIC EMBODIMENT

[0011] The utility model will be further explained in detail in combination with the drawings and specific embodiment.

[0012] As Figure 1 Shown, a kind of water adding pipe for mixing machine, including first water adding pipe 1, second water adding pipe 2 and third water adding pipe 3, first water adding pipe 1, second water adding pipe 2 and third water adding pipe 3 are sequentially arranged from top to bottom, and multiple nozzles 5 are respectively provided on the length direction of first water adding pipe 1, second water adding pipe 2 and third water adding pipe 3, the number of nozzle 5 set on first water adding pipe 1 is more than the number of nozzle 5 set on second water adding pipe 2, the number of nozzle 5 set on second water adding pipe 2 is more than the number of nozzle 5 set on third water adding pipe 3, first nozzle 5 set on second water adding pipe 2 is after last nozzle 5 set on first water adding pipe 1, and first nozzle 5 set on third water adding pipe 3 is after last nozzle 5 set on second water adding pipe 2.

[0013] Flowmeter 4 is respectively arranged on first water adding pipe 1, second water adding pipe 2 and third water adding pipe 3. Flowmeter 4 is connected with visual control system.

[0014] The first water adding pipe 1, the second water adding pipe 2 and the third water adding pipe 3 all use stainless steel water pipes with a pipe diameter of φ60 and a wall thickness of 1.5 mm. The first water adding pipe 1 is provided with six spray heads 5, the second water adding pipe 2 is provided with five spray heads 5, and the third water adding pipe 3 is provided with four spray heads 5. The spray heads 5 are wide-face atomizing spray heads. The distance between the spray heads 5 on each water adding pipe is 700 mm. The distance between the first spray head 5 provided on the first water adding pipe 1 and the first end of the first water adding pipe 1 is 3 m. The distance between the last spray head 5 provided on the third water adding pipe 3 and the last end of the third water adding pipe 3 is 4 m.

[0015] The pipe diameters of the first water adding pipe 1, the second water adding pipe 2 and the third water adding pipe 3 are unified, so as to stabilize the water pressure and make the water adding more stable. The first water adding pipe 1, the second water adding pipe 2 and the third water adding pipe 3 are arranged in sequence from top to bottom. In this way, the water adding mode can be changed to a three-stage water adding mode. Through the modification of the water adding mode, the effect of the mixing machine on the water adding and mixing of the material is improved, and thus the particle size composition of the mixed material is improved, the sphericity and particle size strength of the mixed material are improved, the permeability of the sintering machine is improved, and the solid fuel consumption and the return rate of the sintered ore are reduced. At the same time, the first water adding pipe 1, the second water adding pipe 2 and the third water adding pipe 3 are arranged from top to bottom, so as to reduce the accumulation of material above the water adding pipe, reduce the corrosion of the steel wire rope and reduce the bearing capacity of the steel wire rope under the accumulation of material above the water adding pipe.

[0016] Flow meters 4 are arranged on the first water adding pipe 1, the second water adding pipe 2 and the third water adding pipe 3, so as to effectively control the water adding amount at each point. The flow meters 4 are connected to a visual control system, and the real-time data of the flow meters 4 at each point are displayed on an operation computer to display the real-time water adding amount, so as to facilitate the adjustment and stabilization of the moisture content of the mixed material by the post operators. The computer screen of the visual control system is provided with flow data of the water adding amount at each stage, so as to visually display the visual control data of the moisture content and make the operation more intuitive and the moisture content of the mixed material more controllable and stable.

[0017] Through the optimization and modification of the water adding pipe and the water adding spray heads 5, the moisture content of the mixed material is reasonably reduced, the movement mode of the material in the mixing machine cylinder is more reasonable, the serious sticking of the material in the cylinder is eliminated, the labor intensity of the post operators is reduced, and the self-generated load of the cylinder is reduced.

Claims

1. A water inlet pipe for a mixer, characterized in that: It includes a first water inlet pipe (1), a second water inlet pipe (2) and a third water inlet pipe (3). The first water inlet pipe (1), the second water inlet pipe (2) and the third water inlet pipe (3) are arranged in order from top to bottom. The first water inlet pipe (1), the second water inlet pipe (2) and the third water inlet pipe (3) are provided with multiple nozzles (5) along their length. The number of nozzles (5) on the first water inlet pipe (1) is greater than the number of nozzles (5) on the second water inlet pipe (2). The number of nozzles (5) on the second water inlet pipe (2) is greater than the number of nozzles (5) on the third water inlet pipe (3). The first nozzle (5) on the second water inlet pipe (2) is after the last nozzle (5) on the first water inlet pipe (1). The first nozzle (5) on the third water inlet pipe (3) is after the last nozzle (5) on the second water inlet pipe (2).

2. The water inlet pipe for a mixer according to claim 1, characterized in that: Flow meters (4) are respectively installed on the first water inlet pipe (1), the second water inlet pipe (2) and the third water inlet pipe (3).

3. A water inlet pipe for a mixer according to claim 2, characterized in that: The flow meter (4) is connected to a visual control system.

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