SU1176153A2 - Rotating furnace - Google Patents

Abstract

1. ROTATING FURNACE by avt.S. No. 1048279, which means that, in order to simplify the design and increase the efficiency of heat exchange, the internal longitudinal partitions are made flat. 2. Furnace according to claim 1, distinguished by the fact that the flat partitions are located at an angle to the axis of the furnace, a smaller angle of inclination of the furnace. 3. Furnace according to claims 1 and 2, characterized in that the flat partitions are arranged along the edges of a prism or truncated pyramid inscribed in the oven.

Description

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The invention relates to a heat exchange technique in rotating nets, can be used in the building materials industry, and is in addition to the main author. No. 1048279. The purpose of the invention is to simplify the design and improve the efficiency of heat exchange. This goal is achieved by the fact that in a rotary kiln the internal longitudinal partitions are flat. In this case, the flat partitions can be located at an angle to the furnace axis, smaller than the furnace angle, and also along the edges of the prism inscribed in the furnace or of the broken pyramid. In such a furnace, the material enters the central cell of the furnace. FIG. 1 shows an oven, longitudinal section; figure 2 - section aa in figure 1 in the embodiment of a separate longitudinal partitions; Fig. 3 shows a section A-A in Fig. 1 in a variant of the arrangement of partitions along the edges of the prism; in fig. 4 — an oven with an integrated recuperator cooler and flat partitions at an angle to the furnace axis, a longitudinal section; in fig. 5 - section bb In FIG. 4 in a variant of separate flat partitions arranged at an angle to the axis of the furnace; Fig. 6 shows sections B-B in Fig. 4 in a variant of the arrangement of flat partitions along the edges of a truncated pyramid; figure 7 - section C-C in figure 4. At the unloading end of the furnace 1, there are independent inscribed plots of partition 2, parallel to the axis of the furnace, which form the central cell 3 and the peripheral cell 4. If the partitions 2 are located along the edges of the prism, they form a central cell 5 and peripheral 6 End of the cell 1 enters the charge of the refrigerator 7 through which the nozzle 8 passes for supplying fuel. The nozzle 8 also passes through central cells 3 or 5. Rotating furnace 1 may have. a recuperative cooler 9 mounted on it, connected to it by chutes 10. At the discharge end of the furnace 1, instead of partitions 2 parallel to the axis 3 of the furnace 1, flat partitions 11 can be positioned at an angle. cells 12 and peripheral 13. Partitions 11 can be located along the edge of the written truncated pyramid with the formation of the central cell 14 and peripheral cells 15. In this case, partitions 16 are attached to the truncated pyramid to the furnace 1. Partitions 2.11, 16 and ech 1 may futerovats refractory mate rial Oy. The number of independent partitions is taken from 2 to 6 depending on the diameter of the furnace 1 (the larger the diameter of the furnace 1, the greater the partitions 2, and the distances between them in the light take at least the size of the maximum pieces of material in order to avoid clogging of cells 3 and 4). When the partitions 2 are located along the prism faces, their number is taken not less than 3, and the greatest number of them from the condition of exclusion of blocking of the cells with 6 clocks of maximum sizes. The slope of the partitions 11 to the axis of the furnace 1 is taken to be no more than the angle of inclination of the furnace 1 to the horizon, because otherwise the material along the partitions 11 will not move in the direction of discharge to the refrigerator 9. The number of partitions 11 when placed along the edges of the truncated pyramid is determined from the same considerations as when the partitions 2 are located along the edges of the prism. The length of the partitions 2 and 11 is determined by thermal calculation from the condition of cooling the material to a predetermined temperature. The size of the cell 14 takes no less than the necessary dp for the passage and adjustment of the nozzle 8. The remaining dimensions are determined constructively with a test for durability and operability. The furnace works as follows. Due to the inclination and rotation of the furnace 1, the material moves to the unloading side in refrigerators 7 or 9. When it reaches the partitions 2, it enters the cells 3-6 formed by them and moves in them with lifting and pouring when sucking in air. In the presence of cells 12–15 with inclined partitions 11, the material due to the inclination of the latter during rotation of the furnace 1 has a crossing along and against the material’s stroke depending on the position above or below the axis of the furnace 1. This is also the presence of gas flow turbulization in cells 12–15 variable cross section improves heat transfer.

The use of the furnace I simplifies the design, since all the elements are

are simple parts that also reduces the cost of the furnace 1.

The passage of material through the central cells 3, 5, 12, 14 increases the efficiency of heat exchange in the furnace I, which will lead to fuel savings

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Claims (3)

APPLYING FURNACE by ed. No. 1048279, which entails the fact that, in order to simplify the design and increase the efficiency of heat transfer, the internal longitudinal partitions are made flat. 2. The furnace according to π.1, characterized by the fact that the flat partitions are located at an angle to the axis of the furnace, smaller than the angle of inclination of the furnace. 3. The furnace according to claims 1 and 2, characterized in that the flat partitions are located on the sides of a prism or a truncated pyramid inscribed in the furnace. SU „„ 1176153