Lime cooling equipment of sleeve kiln

Abstract

The invention relates to lime cooling equipment of a sleeve kiln. The lime cooling equipment comprises a ventilation pipe and a distributor. A flow meter and a regulating valve are installed on the ventilation pipe. The ventilation pipe is inserted into a lime storage chamber at the lower part of a kiln body from the side wall of the kiln body and is connected with the distributor. The distributor is a flow guide pipe or an annular distribution pipe. The flow guide pipe is a straight pipe structure with an open upper end and an open lower end and is arranged in the center of the kiln body. The annular distribution pipe and the kiln body are concentrically arranged. Air outlets are arranged on the upper side and the lower side of the annular distribution pipe. The quantity and the size of the air outlets are determined according to the size and process requirements of the sleeve kiln. By installing the distributor at the outlet of the ventilation pipe of a cooling zone, cooling air is evenly distributed on the entire cross section of the cooling zone of the lime kiln. Since the cooling air is evenly distributed, the air is prevented from being segregated or passing through a short path, lime is fully cooled, the cooling speed is high, the lime output temperature is stable and the activity of the lime is improved.

Description

technical field

[0001] The invention belongs to the technical field of building materials and chemical production equipment, and relates to lime cooling equipment, in particular to lime cooling equipment for sleeve kilns. Background technique

[0002] Sleeve shaft kiln, also known as ring kiln, originated from Beckenbach Wilmannsteller Company in Germany. More than 300 sleeve shaft kilns have been put into use in the world. Practice shows that the sleeve-type shaft kiln has simple equipment, convenient operation and maintenance, good working environment, and excellent quality of calcined products. It is a new type of kiln with great development prospects.

[0003] The lime kiln body is divided into a preheating zone, a calcination zone and a cooling zone. The preheating zone uses the high-temperature air after calcination to preheat the limestone material; the calcination zone uses the heat released by combustion to calcine the limestone to decompose the limestone into lime...

Examples

Embodiment 1

[0015] The sleeve kiln lime cooling equipment of the present invention, as figure 1 As shown, it includes a ventilation pipe 3 and a draft pipe 4, and a flow meter 2 and a regulating valve 1 are installed on the ventilation pipe. The sleeve kiln is equipped with a preheating zone, a calcination zone and a cooling zone. The ventilation pipe is inserted into the lime storage bin 5 at the lower part of the kiln body from the side wall of the kiln body 7, and the ventilation pipe is welded to the draft pipe. The guide pipe is a straight pipe structure with upper and lower openings, and the guide pipe is installed in the center of the kiln body. The ventilation pipe 3 and the draft pipe 4 are made of carbon steel.

[0016] The present invention utilizes the negative pressure in the kiln body to suck cold air into the cooling zone to cool the lime. Since the guide pipe is located in the center of the kiln body, the upper and lower open structures, such as figure 1 As shown, the c...

Embodiment 2

[0018] Another embodiment of the present invention is as figure 2 As shown, the distributor is an annular distribution pipe 8, and the material of the annular distribution pipe is stainless steel. The annular distribution pipe is welded to the ventilation pipe 3. like image 3 The upper and lower sides of the annular distribution pipe shown are respectively provided with 8 air outlet holes 9, and the diameter of the air outlet holes is 50mm. The air outlet holes are evenly distributed on the annular distribution pipe, and the cooling air enters the cooling zone through the air outlet holes of the annular distribution pipe to evenly distribute the cooling lime, without segregation, and the cooling effect is good.

technical field

[0001] The invention belongs to the technical field of building materials and chemical production equipment, and relates to lime cooling equipment, in particular to lime cooling equipment for sleeve kilns. Background technique

[0002] Sleeve shaft kiln, also known as ring kiln, originated from Beckenbach Wilmannsteller Company in Germany. More than 300 sleeve shaft kilns have been put into use in the world. Practice shows that the sleeve-type shaft kiln has simple equipment, convenient operation and maintenance, good working environment, and excellent quality of calcined products. It is a new type of kiln with great development prospects.

[0003] The lime kiln body is divided into a preheating zone, a calcination zone and a cooling zone. The preheating zone uses the high-temperature air after calcination to preheat the limestone material; the calcination zone uses the heat released by combustion to calcine the limestone to decompose the limestone into lime...

Examples

Embodiment 1

[0015] The sleeve kiln lime cooling equipment of the present invention, as figure 1 As shown, it includes a ventilation pipe 3 and a draft pipe 4, and a flow meter 2 and a regulating valve 1 are installed on the ventilation pipe. The sleeve kiln is equipped with a preheating zone, a calcination zone and a cooling zone. The ventilation pipe is inserted into the lime storage bin 5 at the lower part of the kiln body from the side wall of the kiln body 7, and the ventilation pipe is welded to the draft pipe. The guide pipe is a straight pipe structure with upper and lower openings, and the guide pipe is installed in the center of the kiln body. The ventilation pipe 3 and the draft pipe 4 are made of carbon steel.

[0016] The present invention utilizes the negative pressure in the kiln body to suck cold air into the cooling zone to cool the lime. Since the guide pipe is located in the center of the kiln body, the upper and lower open structures, such as figure 1 As shown, the c...

Embodiment 2

[0018] Another embodiment of the present invention is as figure 2 As shown, the distributor is an annular distribution pipe 8, and the material of the annular distribution pipe is stainless steel. The annular distribution pipe is welded to the ventilation pipe 3. like image 3 The upper and lower sides of the annular distribution pipe shown are respectively provided with 8 air outlet holes 9, and the diameter of the air outlet holes is 50mm. The air outlet holes are evenly distributed on the annular distribution pipe, and the cooling air enters the cooling zone through the air outlet holes of the annular distribution pipe to evenly distribute the cooling lime, without segregation, and the cooling effect is good.

Images